22-Feb-2016 13:43:46.012 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version:        Apache Tomcat/8.0.24
22-Feb-2016 13:43:46.013 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Jul 1 2015 20:19:55 UTC
22-Feb-2016 13:43:46.013 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number:         8.0.24.0
22-Feb-2016 13:43:46.014 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Windows 7
22-Feb-2016 13:43:46.014 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            6.1
22-Feb-2016 13:43:46.014 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          amd64
22-Feb-2016 13:43:46.014 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             C:\Program Files\Java\jdk1.8.0_66\jre
22-Feb-2016 13:43:46.014 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           1.8.0_66-b18
22-Feb-2016 13:43:46.014 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Oracle Corporation
22-Feb-2016 13:43:46.015 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24
22-Feb-2016 13:43:46.015 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24
22-Feb-2016 13:43:46.015 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\conf\logging.properties
22-Feb-2016 13:43:46.015 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
22-Feb-2016 13:43:46.015 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Xmx512m
22-Feb-2016 13:43:46.015 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -XX:MaxPermSize=256m
22-Feb-2016 13:43:46.016 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -XX:PermSize=256m
22-Feb-2016 13:43:46.016 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.endorsed.dirs=C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\endorsed
22-Feb-2016 13:43:46.017 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24
22-Feb-2016 13:43:46.017 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24
22-Feb-2016 13:43:46.017 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\temp
22-Feb-2016 13:43:46.017 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jdk1.8.0_66\jre\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\oracle\product\11.2.0\client_1\bin;C:\oracle\product\11.2.0\client_1;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WorkTools\apache-maven-3.2.5-bin\apache-maven-3.2.5\bin;C:\Program Files (x86)\Skype\Phone\;C:\Users\e6663u\Work\apache-maven-3.3.3\bin;C:\Program Files\nodejs\;C:\Program Files\Java\jdk1.8.0_66\bin;C:\Program Files (x86)\Java\jre7\bin;C:\Users\e6663u\AppData\Roaming\npm;C:\Users\e6663u\AppData\Local\Programs\Git\cmd;.
22-Feb-2016 13:43:46.138 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]
22-Feb-2016 13:43:46.197 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
22-Feb-2016 13:43:46.199 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"]
22-Feb-2016 13:43:46.201 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
22-Feb-2016 13:43:46.202 INFO [main] org.apache.catalina.startup.Catalina.load Initialization processed in 516 ms
22-Feb-2016 13:43:46.216 WARNING [main] org.apache.tomcat.jdbc.pool.ConnectionPool.init maxIdle is larger than maxActive, setting maxIdle to: 20
22-Feb-2016 13:43:48.984 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-08046 Found camunda bpm platform configuration in CATALINA_BASE/CATALINA_HOME conf directory [C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\conf\bpm-platform.xml] at 'file:/C:/Users/e6663u/Work/camunda-bpm-ee-tomcat-7.4.2-ee/server/apache-tomcat-8.0.24/conf/bpm-platform.xml'
22-Feb-2016 13:43:49.166 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-12003 Plugin 'ProcessApplicationEventListenerPlugin' activated on process engine 'default'
22-Feb-2016 13:43:49.169 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-12003 Plugin 'SpinProcessEnginePlugin' activated on process engine 'default'
22-Feb-2016 13:43:49.174 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo SPIN-01010 Discovered Spin data format provider: org.camunda.spin.impl.json.jackson.format.JacksonJsonDataFormatProvider[name = application/json]
22-Feb-2016 13:43:49.324 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo SPIN-01010 Discovered Spin data format provider: org.camunda.spin.impl.xml.dom.format.DomXmlDataFormatProvider[name = application/xml]
22-Feb-2016 13:43:49.332 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo SPIN-01009 Discovered Spin data format: org.camunda.spin.impl.xml.dom.format.DomXmlDataFormat[name = application/xml]
22-Feb-2016 13:43:49.332 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo SPIN-01009 Discovered Spin data format: org.camunda.spin.impl.json.jackson.format.JacksonJsonDataFormat[name = application/json]
22-Feb-2016 13:43:49.333 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-12003 Plugin 'ConnectProcessEnginePlugin' activated on process engine 'default'
22-Feb-2016 13:43:49.447 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo CNCT-01004 Discovered provider for connector id 'http-connector' and class 'org.camunda.connect.httpclient.impl.HttpConnectorImpl': 'org.camunda.connect.httpclient.impl.HttpConnectorProviderImpl'
22-Feb-2016 13:43:49.452 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo CNCT-01004 Discovered provider for connector id 'soap-http-connector' and class 'org.camunda.connect.httpclient.soap.impl.SoapHttpConnectorImpl': 'org.camunda.connect.httpclient.soap.impl.SoapHttpConnectorProviderImpl'
22-Feb-2016 13:43:50.671 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-00001 Process Engine default created.
22-Feb-2016 13:43:50.672 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14014 Starting up the JobExecutor[org.camunda.bpm.engine.impl.jobexecutor.RuntimeContainerJobExecutor].
22-Feb-2016 13:43:50.674 INFO [Thread-6] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14018 JobExecutor[org.camunda.bpm.engine.impl.jobexecutor.RuntimeContainerJobExecutor] starting to acquire jobs
22-Feb-2016 13:43:50.679 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-08048 Camunda BPM platform sucessfully started at 'Apache Tomcat/8.0.24'.
22-Feb-2016 13:43:50.687 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service Catalina
22-Feb-2016 13:43:50.687 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.0.24
22-Feb-2016 13:43:50.708 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\jobexecutor.war
22-Feb-2016 13:43:54.599 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
22-Feb-2016 13:43:55.349 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-08024 Found processes.xml file at file:/C:/Users/e6663u/Work/camunda-bpm-ee-tomcat-7.4.2-ee/server/apache-tomcat-8.0.24/webapps/jobexecutor/WEB-INF/classes/META-INF/processes.xml
22-Feb-2016 13:43:55.361 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-08023 Deployment summary for process archive 'test': 

        recurring.png
        recurring.bpmn

22-Feb-2016 13:43:55.603 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-07021 ProcessApplication 'bsu' registered for DB deployments [e5e6bd87-d960-11e5-a633-8851fb556b23, 1ee76513-d65a-11e5-a65a-8851fb556b23, 4580eaa4-d65c-11e5-8adb-8851fb556b23, 8873ac4d-d65e-11e5-bdb9-8851fb556b23]. Will execute process definitions 

        Process1[version: 4, id: Process1:4:e5e9559a-d960-11e5-a633-8851fb556b23]
        Process1[version: 1, id: Process1:1:1ee9af06-d65a-11e5-a65a-8851fb556b23]
        Process1[version: 2, id: Process1:2:45827147-d65c-11e5-8adb-8851fb556b23]
        Process1[version: 3, id: Process1:3:887b7480-d65e-11e5-bdb9-8851fb556b23]
Deployment does not provide any case definitions.
22-Feb-2016 13:43:55.609 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo SPIN-01010 Discovered Spin data format provider: org.camunda.spin.impl.json.jackson.format.JacksonJsonDataFormatProvider[name = application/json]
22-Feb-2016 13:43:55.610 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo SPIN-01010 Discovered Spin data format provider: org.camunda.spin.impl.xml.dom.format.DomXmlDataFormatProvider[name = application/xml]
22-Feb-2016 13:43:55.612 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo SPIN-01009 Discovered Spin data format: org.camunda.spin.impl.xml.dom.format.DomXmlDataFormat[name = application/xml]
22-Feb-2016 13:43:55.612 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo SPIN-01009 Discovered Spin data format: org.camunda.spin.impl.json.jackson.format.JacksonJsonDataFormat[name = application/json]
22-Feb-2016 13:43:55.613 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-08050 Process application bsu successfully deployed
22-Feb-2016 13:43:55.846 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\jobexecutor.war has finished in 5,137 ms
22-Feb-2016 13:43:55.847 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\camunda
22-Feb-2016 13:43:56.873 INFO [pool-2-thread-2] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f020bad6-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:56.874 INFO [pool-2-thread-3] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f0201e92-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:56.875 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f01ff77d-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:56.882 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f01ff77e-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:56.885 INFO [pool-2-thread-6] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f02352ec-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:56.894 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f02575d6-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:56.904 INFO [pool-2-thread-7] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f02352eb-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:56.914 INFO [pool-2-thread-5] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f01fd06c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:56.915 INFO [pool-2-thread-8] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f023c81f-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:56.925 INFO [pool-2-thread-1] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f02575d4-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:57.531 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
22-Feb-2016 13:43:57.757 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\camunda has finished in 1,910 ms
22-Feb-2016 13:43:57.757 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\camunda-invoice
22-Feb-2016 13:43:57.914 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f0c426f8-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:57.929 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f0c670ee-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:57.932 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f0c70d31-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:57.981 INFO [pool-2-thread-12] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f0ce603a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:57.983 INFO [pool-2-thread-11] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f0ceae5d-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:57.991 INFO [pool-2-thread-16] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f0cfe6e4-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:57.994 INFO [pool-2-thread-13] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f0cf2390-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:58.004 INFO [pool-2-thread-14] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f0d1e2c1-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:58.005 INFO [pool-2-thread-15] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f0d1e2c3-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:58.009 INFO [pool-2-thread-17] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f0d27f07-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:58.928 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f15f07a4-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:58.946 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f1619fba-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:58.962 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f16410c0-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:59.007 INFO [pool-2-thread-12] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f16b15a6-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:59.017 INFO [pool-2-thread-16] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f16c753c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:59.026 INFO [pool-2-thread-11] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f16dfbe1-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:59.038 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-07015 Detected @ProcessApplication class 'org.camunda.bpm.example.invoice.InvoiceProcessApplication'
22-Feb-2016 13:43:59.059 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
22-Feb-2016 13:43:59.062 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-08024 Found processes.xml file at file:/C:/Users/e6663u/Work/camunda-bpm-ee-tomcat-7.4.2-ee/server/apache-tomcat-8.0.24/webapps/camunda-invoice/WEB-INF/classes/META-INF/processes.xml
22-Feb-2016 13:43:59.067 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-08023 Deployment summary for process archive 'camunda-invoice': 

        invoice.png
        assign-approver-groups.dmn
        invoice.bpmn

22-Feb-2016 13:43:59.091 INFO [pool-2-thread-18] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f177e6f8-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:59.094 INFO [pool-2-thread-19] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f1780e0b-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:59.100 INFO [pool-2-thread-20] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f1794692-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:59.104 INFO [pool-2-thread-21] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f1796da5-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:59.113 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-07021 ProcessApplication 'camunda-invoice' registered for DB deployments [d30f4734-d54d-11e5-91fc-8851fb556b23, 4035aa17-d64e-11e5-91fc-8851fb556b23]. Will execute process definitions 

        invoice[version: 1, id: invoice:1:d31e1448-d54d-11e5-91fc-8851fb556b23]
        invoice[version: 2, id: invoice:2:40381b1a-d64e-11e5-91fc-8851fb556b23]
Deployment does not provide any case definitions.
22-Feb-2016 13:43:59.116 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo SPIN-01010 Discovered Spin data format provider: org.camunda.spin.impl.json.jackson.format.JacksonJsonDataFormatProvider[name = application/json]
22-Feb-2016 13:43:59.116 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo SPIN-01010 Discovered Spin data format provider: org.camunda.spin.impl.xml.dom.format.DomXmlDataFormatProvider[name = application/xml]
22-Feb-2016 13:43:59.118 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo SPIN-01009 Discovered Spin data format: org.camunda.spin.impl.xml.dom.format.DomXmlDataFormat[name = application/xml]
22-Feb-2016 13:43:59.119 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo SPIN-01009 Discovered Spin data format: org.camunda.spin.impl.json.jackson.format.JacksonJsonDataFormat[name = application/json]
22-Feb-2016 13:43:59.941 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f1f99976-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:59.971 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f1fddf3c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:43:59.976 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f1fec9a9-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:00.022 INFO [pool-2-thread-12] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f205ceb3-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:00.047 INFO [pool-2-thread-16] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f2099f4a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:00.052 INFO [pool-2-thread-11] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f209ed6e-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:00.057 INFO [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-08050 Process application camunda-invoice successfully deployed
22-Feb-2016 13:44:00.060 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\camunda-invoice has finished in 2,303 ms
22-Feb-2016 13:44:00.060 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\camunda-welcome
22-Feb-2016 13:44:00.107 INFO [pool-2-thread-18] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f212ee2e-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:00.111 INFO [pool-2-thread-19] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f2136361-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:00.112 INFO [pool-2-thread-20] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f2138a75-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:00.196 INFO [pool-2-thread-22] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f22082d0-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:00.971 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f296c446-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:00.985 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f298c01c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:00.990 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f298e72f-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:01.031 INFO [pool-2-thread-12] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f29fec18-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:01.060 INFO [pool-2-thread-16] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f2a458ee-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:01.060 INFO [pool-2-thread-11] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f2a458f0-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:01.118 INFO [pool-2-thread-18] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f2ad0b8a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:01.124 INFO [pool-2-thread-19] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f2ae1d01-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:01.125 INFO [pool-2-thread-20] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f2ae1cff-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:01.205 INFO [pool-2-thread-22] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f2ba520c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:01.309 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
22-Feb-2016 13:44:01.312 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\camunda-welcome has finished in 1,251 ms
22-Feb-2016 13:44:01.312 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\docs
22-Feb-2016 13:44:01.983 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f33156d2-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:01.992 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3328f58-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:01.997 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3332b9d-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:02.037 INFO [pool-2-thread-12] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3399344-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:02.069 INFO [pool-2-thread-16] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f33e754a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:02.105 INFO [pool-2-thread-23] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f343cc80-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:02.129 INFO [pool-2-thread-18] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3477606-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:02.137 INFO [pool-2-thread-19] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f348ae8f-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:02.137 INFO [pool-2-thread-20] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f348877c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:02.219 INFO [pool-2-thread-22] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f35531b8-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:02.438 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
22-Feb-2016 13:44:02.441 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\docs has finished in 1,129 ms
22-Feb-2016 13:44:02.441 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\engine-rest
22-Feb-2016 13:44:02.990 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3cafdfe-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:03.000 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3cc5d94-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:03.021 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3cfb8fa-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:03.061 INFO [pool-2-thread-12] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3d5ac70-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:03.076 INFO [pool-2-thread-16] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3d7cf56-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:03.112 INFO [pool-2-thread-23] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3dd9bbc-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:03.136 INFO [pool-2-thread-18] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3e11e32-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:03.144 INFO [pool-2-thread-19] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3e256b8-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:03.204 INFO [pool-2-thread-24] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3eb7e7e-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:03.226 INFO [pool-2-thread-22] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f3eed9e4-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:03.996 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f464580a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:04.007 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f4662cd0-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:04.031 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f469af46-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:04.068 INFO [pool-2-thread-12] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f46f7bac-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:04.100 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
22-Feb-2016 13:44:04.106 INFO [pool-2-thread-25] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f4754812-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:04.118 INFO [pool-2-thread-23] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f476f5c8-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:04.142 INFO [pool-2-thread-18] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f47ac65e-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:04.149 INFO [pool-2-thread-19] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f47bb0c4-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:04.198 INFO [localhost-startStop-1] org.jboss.resteasy.logging.impl.Slf4jLogger.info Deploying javax.ws.rs.core.Application: class org.camunda.bpm.engine.rest.impl.application.DefaultApplication
22-Feb-2016 13:44:04.210 INFO [pool-2-thread-24] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f484ff9a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:04.232 INFO [pool-2-thread-22] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f4885b00-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:04.272 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\engine-rest has finished in 1,831 ms
22-Feb-2016 13:44:04.272 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\examples
22-Feb-2016 13:44:05.001 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f4fdb216-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:05.013 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f4ff86dc-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:05.051 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f5057a52-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:05.074 INFO [pool-2-thread-12] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f508d5b8-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:05.115 INFO [pool-2-thread-25] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f50f174e-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:05.123 INFO [pool-2-thread-23] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f5104fd4-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:05.148 INFO [pool-2-thread-18] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f514206a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:05.208 INFO [pool-2-thread-26] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f51d6f40-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:05.216 INFO [pool-2-thread-24] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f51e80b6-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:05.237 INFO [pool-2-thread-22] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f521b50c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:05.808 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
22-Feb-2016 13:44:05.839 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\examples has finished in 1,567 ms
22-Feb-2016 13:44:05.839 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\h2
22-Feb-2016 13:44:06.009 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f5978152-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:06.020 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f5995618-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:06.067 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f5a0820e-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:06.078 INFO [pool-2-thread-12] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f5a22fc4-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:06.120 INFO [pool-2-thread-25] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f5a8715a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:06.127 INFO [pool-2-thread-23] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f5a9a8e0-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:06.155 INFO [pool-2-thread-18] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f5adeea6-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:06.214 INFO [pool-2-thread-26] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f5b6c84c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:06.220 INFO [pool-2-thread-24] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f5b7d9c2-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:06.242 INFO [pool-2-thread-22] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f5bb0e18-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:07.009 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
22-Feb-2016 13:44:07.014 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f630da5e-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:07.015 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\h2 has finished in 1,176 ms
22-Feb-2016 13:44:07.015 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\host-manager
22-Feb-2016 13:44:07.025 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6328814-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:07.073 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f63a022a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:07.110 INFO [pool-2-thread-27] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f63f8070-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:07.125 INFO [pool-2-thread-25] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f641ca66-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:07.132 INFO [pool-2-thread-23] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f64302ec-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:07.161 INFO [pool-2-thread-18] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6476fc2-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:07.219 INFO [pool-2-thread-26] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6504968-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:07.224 INFO [pool-2-thread-24] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6510cbe-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:07.248 INFO [pool-2-thread-22] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f654b644-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:08.019 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6ca5b7a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:08.030 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6cc0930-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:08.078 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6d35c36-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:08.114 INFO [pool-2-thread-27] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6d8da7c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:08.135 INFO [pool-2-thread-25] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6dc0ed2-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:08.136 INFO [pool-2-thread-23] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6dc35e5-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:08.148 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
22-Feb-2016 13:44:08.151 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\host-manager has finished in 1,136 ms
22-Feb-2016 13:44:08.151 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\manager
22-Feb-2016 13:44:08.212 INFO [pool-2-thread-28] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6e7a79e-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:08.224 INFO [pool-2-thread-26] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6e9a374-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:08.229 INFO [pool-2-thread-24] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6ea66ca-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:08.253 INFO [pool-2-thread-22] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f6ee1050-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:09.024 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f763b586-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:09.035 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f7653c2c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:09.083 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f76cb642-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:09.120 INFO [pool-2-thread-27] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f7723488-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:09.143 INFO [pool-2-thread-23] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f775b6fe-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:09.144 INFO [pool-2-thread-25] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f775de11-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:09.217 INFO [pool-2-thread-28] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f78101aa-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:09.229 INFO [pool-2-thread-26] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f782d670-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:09.233 INFO [pool-2-thread-24] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f78399c6-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:09.256 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
22-Feb-2016 13:44:09.259 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\manager has finished in 1,108 ms
22-Feb-2016 13:44:09.259 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\ROOT
22-Feb-2016 13:44:09.315 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f78ff5dc-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.029 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f7fd0f92-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.039 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f7fe9638-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.088 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f806104e-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.125 INFO [pool-2-thread-27] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f80b8e94-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.150 INFO [pool-2-thread-25] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f80f863a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.150 INFO [pool-2-thread-23] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f80f863b-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.220 INFO [pool-2-thread-28] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f81a34a6-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.234 INFO [pool-2-thread-26] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f81c307c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.238 INFO [pool-2-thread-24] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f81cf2d2-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.320 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f82975f8-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.328 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f82a605d-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.328 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f82a8771-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.330 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f82afca4-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.331 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f82afca8-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.333 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f82b71db-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.338 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f82c0e1e-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.339 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f82c3532-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.341 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f82caa65-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:10.408 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
22-Feb-2016 13:44:10.411 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\e6663u\Work\camunda-bpm-ee-tomcat-7.4.2-ee\server\apache-tomcat-8.0.24\webapps\ROOT has finished in 1,151 ms
22-Feb-2016 13:44:10.415 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
22-Feb-2016 13:44:10.422 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
22-Feb-2016 13:44:10.423 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 24221 ms
22-Feb-2016 13:44:10.453 INFO [main] org.apache.catalina.core.StandardServer.await A valid shutdown command was received via the shutdown port. Stopping the Server instance.
22-Feb-2016 13:44:10.505 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-08051 Process application camunda-invoice undeployed
22-Feb-2016 13:44:10.552 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-08051 Process application bsu undeployed
22-Feb-2016 13:44:10.555 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14015 Shutting down the JobExecutor[org.camunda.bpm.engine.impl.jobexecutor.RuntimeContainerJobExecutor]
22-Feb-2016 13:44:10.555 INFO [Thread-6] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14020 JobExecutor[org.camunda.bpm.engine.impl.jobexecutor.RuntimeContainerJobExecutor] stopped job acquisition
22-Feb-2016 13:44:10.556 INFO [main] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-08049 Camunda BPM platform stopped at 'Apache Tomcat/8.0.24'
22-Feb-2016 13:44:10.556 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-nio-8080"]
22-Feb-2016 13:44:10.609 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["ajp-nio-8009"]
22-Feb-2016 13:44:10.660 INFO [main] org.apache.catalina.core.StandardService.stopInternal Stopping service Catalina
22-Feb-2016 13:44:10.673 WARNING [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-07017 Calling undeploy() on process application that is not deployed.
22-Feb-2016 13:44:10.693 WARNING [localhost-startStop-1] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-07017 Calling undeploy() on process application that is not deployed.
22-Feb-2016 13:44:10.697 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [jobexecutor] appears to have started a thread named [pool-2-thread-4] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Thread.sleep(Native Method)
 sb1.camunda.utils.log.LogService.log(LogService.java:24)
 sun.reflect.GeneratedMethodAccessor157.invoke(Unknown Source)
 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 java.lang.reflect.Method.invoke(Method.java:497)
 org.camunda.bpm.engine.impl.javax.el.BeanELResolver.invoke(BeanELResolver.java:479)
 org.camunda.bpm.engine.impl.el.AbstractElResolverDelegate.invoke(AbstractElResolverDelegate.java:93)
 org.camunda.bpm.engine.impl.javax.el.CompositeELResolver.invoke(CompositeELResolver.java:397)
 org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:91)
 org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
 org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
 org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
 org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
 org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
 org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
 org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
 org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
 org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
 org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
 org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
 org.camunda.bpm.engine.impl.interceptor.CommandContext$1.call(CommandContext.java:150)
 org.camunda.bpm.engine.impl.interceptor.CommandContext$1.call(CommandContext.java:148)
 org.camunda.bpm.engine.impl.context.ProcessApplicationClassloaderInterceptor.call(ProcessApplicationClassloaderInterceptor.java:44)
 org.camunda.bpm.application.AbstractProcessApplication.execute(AbstractProcessApplication.java:118)
 org.camunda.bpm.engine.impl.context.Context.executeWithinProcessApplication(Context.java:186)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:148)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
 org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
 org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
 org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
 org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
 org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
 org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
 org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
 org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 java.lang.Thread.run(Thread.java:745)
22-Feb-2016 13:44:10.837 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [jobexecutor] appears to have started a thread named [pool-2-thread-9] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Thread.sleep(Native Method)
 sb1.camunda.utils.log.LogService.log(LogService.java:24)
 sun.reflect.GeneratedMethodAccessor157.invoke(Unknown Source)
 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 java.lang.reflect.Method.invoke(Method.java:497)
 org.camunda.bpm.engine.impl.javax.el.BeanELResolver.invoke(BeanELResolver.java:479)
 org.camunda.bpm.engine.impl.el.AbstractElResolverDelegate.invoke(AbstractElResolverDelegate.java:93)
 org.camunda.bpm.engine.impl.javax.el.CompositeELResolver.invoke(CompositeELResolver.java:397)
 org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:91)
 org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
 org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
 org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
 org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
 org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
 org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
 org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
 org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
 org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
 org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
 org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
 org.camunda.bpm.engine.impl.interceptor.CommandContext$1.call(CommandContext.java:150)
 org.camunda.bpm.engine.impl.interceptor.CommandContext$1.call(CommandContext.java:148)
 org.camunda.bpm.engine.impl.context.ProcessApplicationClassloaderInterceptor.call(ProcessApplicationClassloaderInterceptor.java:44)
 org.camunda.bpm.application.AbstractProcessApplication.execute(AbstractProcessApplication.java:118)
 org.camunda.bpm.engine.impl.context.Context.executeWithinProcessApplication(Context.java:186)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:148)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
 org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
 org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
 org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
 org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
 org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
 org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
 org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
 org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 java.lang.Thread.run(Thread.java:745)
22-Feb-2016 13:44:11.003 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [jobexecutor] appears to have started a thread named [pool-2-thread-10] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Thread.sleep(Native Method)
 sb1.camunda.utils.log.LogService.log(LogService.java:24)
 sun.reflect.GeneratedMethodAccessor157.invoke(Unknown Source)
 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 java.lang.reflect.Method.invoke(Method.java:497)
 org.camunda.bpm.engine.impl.javax.el.BeanELResolver.invoke(BeanELResolver.java:479)
 org.camunda.bpm.engine.impl.el.AbstractElResolverDelegate.invoke(AbstractElResolverDelegate.java:93)
 org.camunda.bpm.engine.impl.javax.el.CompositeELResolver.invoke(CompositeELResolver.java:397)
 org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:91)
 org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
 org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
 org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
 org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
 org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
 org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
 org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
 org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
 org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
 org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
 org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
 org.camunda.bpm.engine.impl.interceptor.CommandContext$1.call(CommandContext.java:150)
 org.camunda.bpm.engine.impl.interceptor.CommandContext$1.call(CommandContext.java:148)
 org.camunda.bpm.engine.impl.context.ProcessApplicationClassloaderInterceptor.call(ProcessApplicationClassloaderInterceptor.java:44)
 org.camunda.bpm.application.AbstractProcessApplication.execute(AbstractProcessApplication.java:118)
 org.camunda.bpm.engine.impl.context.Context.executeWithinProcessApplication(Context.java:186)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:148)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
 org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
 org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
 org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
 org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
 org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
 org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
 org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
 org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 java.lang.Thread.run(Thread.java:745)
22-Feb-2016 13:44:11.074 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [jobexecutor] appears to have started a thread named [pool-2-thread-23] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Thread.sleep(Native Method)
 sb1.camunda.utils.log.LogService.log(LogService.java:24)
 sun.reflect.GeneratedMethodAccessor157.invoke(Unknown Source)
 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 java.lang.reflect.Method.invoke(Method.java:497)
 org.camunda.bpm.engine.impl.javax.el.BeanELResolver.invoke(BeanELResolver.java:479)
 org.camunda.bpm.engine.impl.el.AbstractElResolverDelegate.invoke(AbstractElResolverDelegate.java:93)
 org.camunda.bpm.engine.impl.javax.el.CompositeELResolver.invoke(CompositeELResolver.java:397)
 org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:91)
 org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
 org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
 org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
 org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
 org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
 org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
 org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
 org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
 org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
 org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
 org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
 org.camunda.bpm.engine.impl.interceptor.CommandContext$1.call(CommandContext.java:150)
 org.camunda.bpm.engine.impl.interceptor.CommandContext$1.call(CommandContext.java:148)
 org.camunda.bpm.engine.impl.context.ProcessApplicationClassloaderInterceptor.call(ProcessApplicationClassloaderInterceptor.java:44)
 org.camunda.bpm.application.AbstractProcessApplication.execute(AbstractProcessApplication.java:118)
 org.camunda.bpm.engine.impl.context.Context.executeWithinProcessApplication(Context.java:186)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:148)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
 org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
 org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
 org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
 org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
 org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
 org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
 org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
 org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 java.lang.Thread.run(Thread.java:745)
22-Feb-2016 13:44:11.076 INFO [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f89cd163-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.076 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f89cd162-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.147 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [jobexecutor] appears to have started a thread named [pool-2-thread-24] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Thread.sleep(Native Method)
 sb1.camunda.utils.log.LogService.log(LogService.java:24)
 sun.reflect.GeneratedMethodAccessor157.invoke(Unknown Source)
 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 java.lang.reflect.Method.invoke(Method.java:497)
 org.camunda.bpm.engine.impl.javax.el.BeanELResolver.invoke(BeanELResolver.java:479)
 org.camunda.bpm.engine.impl.el.AbstractElResolverDelegate.invoke(AbstractElResolverDelegate.java:93)
 org.camunda.bpm.engine.impl.javax.el.CompositeELResolver.invoke(CompositeELResolver.java:397)
 org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:91)
 org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
 org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
 org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
 org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
 org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
 org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
 org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
 org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
 org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
 org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
 org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
 org.camunda.bpm.engine.impl.interceptor.CommandContext$1.call(CommandContext.java:150)
 org.camunda.bpm.engine.impl.interceptor.CommandContext$1.call(CommandContext.java:148)
 org.camunda.bpm.engine.impl.context.ProcessApplicationClassloaderInterceptor.call(ProcessApplicationClassloaderInterceptor.java:44)
 org.camunda.bpm.application.AbstractProcessApplication.execute(AbstractProcessApplication.java:118)
 org.camunda.bpm.engine.impl.context.Context.executeWithinProcessApplication(Context.java:186)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:148)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
 org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
 org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
 org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
 org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
 org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
 org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
 org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
 org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 java.lang.Thread.run(Thread.java:745)
22-Feb-2016 13:44:11.148 INFO [pool-2-thread-4] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f8a7a6d8-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.150 INFO [pool-2-thread-27] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f8a7f4fb-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.175 INFO [pool-2-thread-25] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f8abeca7-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.175 INFO [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f8a9c9c3-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.182 SEVERE [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fb96cd7e-d960-11e5-a633-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:11.216 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [jobexecutor] appears to have started a thread named [pool-2-thread-26] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Thread.sleep(Native Method)
 sb1.camunda.utils.log.LogService.log(LogService.java:24)
 sun.reflect.GeneratedMethodAccessor157.invoke(Unknown Source)
 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 java.lang.reflect.Method.invoke(Method.java:497)
 org.camunda.bpm.engine.impl.javax.el.BeanELResolver.invoke(BeanELResolver.java:479)
 org.camunda.bpm.engine.impl.el.AbstractElResolverDelegate.invoke(AbstractElResolverDelegate.java:93)
 org.camunda.bpm.engine.impl.javax.el.CompositeELResolver.invoke(CompositeELResolver.java:397)
 org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:91)
 org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
 org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
 org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
 org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
 org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
 org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
 org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
 org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
 org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
 org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
 org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
 org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
 org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
 org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
 org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
 org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
 org.camunda.bpm.engine.impl.interceptor.CommandContext$1.call(CommandContext.java:150)
 org.camunda.bpm.engine.impl.interceptor.CommandContext$1.call(CommandContext.java:148)
 org.camunda.bpm.engine.impl.context.ProcessApplicationClassloaderInterceptor.call(ProcessApplicationClassloaderInterceptor.java:44)
 org.camunda.bpm.application.AbstractProcessApplication.execute(AbstractProcessApplication.java:118)
 org.camunda.bpm.engine.impl.context.Context.executeWithinProcessApplication(Context.java:186)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:148)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
 org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
 org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
 org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
 org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
 org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
 org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
 org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
 org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
 org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
 org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 java.lang.Thread.run(Thread.java:745)
22-Feb-2016 13:44:11.218 INFO [pool-2-thread-23] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f8b2554d-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.220 WARNING [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fbb440a1-d960-11e5-a633-8851fb556b23, revision=2, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:10 CET 2016, executionId=fb96cd7e-d960-11e5-a633-8851fb556b23, processInstanceId=fb96cd7e-d960-11e5-a633-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:11.221 SEVERE [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fbb37d4c-d960-11e5-a633-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:11.286 SEVERE [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:11.289 INFO [pool-2-thread-28] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f8bd51d1-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.292 INFO [pool-2-thread-26] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f8bdc706-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.357 WARNING [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=f8a9c9c3-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:11 CET 2016, executionId=fbb37d4c-d960-11e5-a633-8851fb556b23, processInstanceId=fbb37d4c-d960-11e5-a633-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:11.357 WARNING [pool-2-thread-10] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fbb440a1-d960-11e5-a633-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:11.358 INFO [pool-2-thread-24] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f8c7d92c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.423 SEVERE [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:11.425 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f8d2125f-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.498 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f8dd0ee4-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.500 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-nio-8080"]
22-Feb-2016 13:44:11.561 WARNING [pool-2-thread-9] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job f8a9c9c3-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:11.691 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f8dd0ee8-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.693 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f8faf734-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.694 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[f82afca6-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:11.696 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=f82caa65-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:10 CET 2016, executionId=f82afca6-d961-11e5-9208-8851fb556b23, processInstanceId=f82afca6-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:11.721 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["ajp-nio-8009"]
22-Feb-2016 13:44:11.763 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:11.823 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["http-nio-8080"]
22-Feb-2016 13:44:11.826 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job f82caa65-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:11.830 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["ajp-nio-8009"]
22-Feb-2016 13:44:11.897 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f919f0ed-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.898 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f91a1801-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.900 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f91a8d34-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:11.901 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[f82c3530-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:11.901 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=f8faf734-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:11 CET 2016, executionId=f82c3530-d961-11e5-9208-8851fb556b23, processInstanceId=f82c3530-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:11.958 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.032 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job f8faf734-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.093 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f937d93b-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.094 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f938004f-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.095 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f9387582-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.096 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[f8dd0ee6-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:12.097 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=f91a8d34-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:11 CET 2016, executionId=f8dd0ee6-d961-11e5-9208-8851fb556b23, processInstanceId=f8dd0ee6-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.163 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.225 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job f91a8d34-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.292 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f95636b9-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.292 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f9565dcd-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.294 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f956abf0-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.296 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[f91a17ff-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:12.297 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=f9387582-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:12 CET 2016, executionId=f91a17ff-d961-11e5-9208-8851fb556b23, processInstanceId=f91a17ff-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.362 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.430 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job f9387582-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.491 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f9749437-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.491 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f974bb4b-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.501 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f97641ee-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.501 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[f938004d-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:12.502 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=f956abf0-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:12 CET 2016, executionId=f938004d-d961-11e5-9208-8851fb556b23, processInstanceId=f938004d-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.559 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.627 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job f956abf0-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.689 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f992caa5-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.691 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f992f1b9-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.693 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f9938dfc-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.694 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[f9565dcb-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:12.697 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=f97641ee-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:12 CET 2016, executionId=f9565dcb-d961-11e5-9208-8851fb556b23, processInstanceId=f9565dcb-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.763 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.825 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job f97641ee-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.891 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f9b19d53-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.891 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f9b1c467-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.893 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f9b2128a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:12.894 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[f974bb49-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:12.894 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=f9938dfc-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:12 CET 2016, executionId=f974bb49-d961-11e5-9208-8851fb556b23, processInstanceId=f974bb49-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:12.959 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.026 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job f9938dfc-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.088 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f9cfd3c1-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.089 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f9cfd3c5-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.092 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f9d07008-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.093 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[f992f1b7-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:13.093 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=f9b2128a-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:12 CET 2016, executionId=f992f1b7-d961-11e5-9208-8851fb556b23, processInstanceId=f992f1b7-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.157 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.222 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job f9b2128a-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.284 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f9edbc0f-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.286 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f9edbc13-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.288 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='f9ee5856-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.289 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[f9b19d55-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:13.291 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=f9d07008-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:13 CET 2016, executionId=f9b19d55-d961-11e5-9208-8851fb556b23, processInstanceId=f9b19d55-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.353 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.419 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job f9d07008-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.477 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa0ae10d-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.477 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa0b0821-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.479 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa0b7d54-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.480 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[f9cfd3c3-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:13.481 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=f9ee5856-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:13 CET 2016, executionId=f9cfd3c3-d961-11e5-9208-8851fb556b23, processInstanceId=f9cfd3c3-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.541 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.600 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job f9ee5856-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.663 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa2769cb-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.664 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa2790df-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.665 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa280512-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.666 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[f9edbc11-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:13.666 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fa0b7d54-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:13 CET 2016, executionId=f9edbc11-d961-11e5-9208-8851fb556b23, processInstanceId=f9edbc11-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.728 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.791 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fa0b7d54-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.850 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa43f189-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.851 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa44189d-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.853 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa448dd0-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:13.854 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fa0b081f-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:13.854 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fa280512-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:13 CET 2016, executionId=fa0b081f-d961-11e5-9208-8851fb556b23, processInstanceId=fa0b081f-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.914 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:13.978 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fa280512-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.041 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa611687-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.042 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa613d9b-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.044 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa61b2ce-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.045 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fa2790dd-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:14.045 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fa448dd0-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:13 CET 2016, executionId=fa2790dd-d961-11e5-9208-8851fb556b23, processInstanceId=fa2790dd-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.103 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.167 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fa448dd0-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.226 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa7d5125-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.228 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa7d5129-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.229 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa7e147c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.231 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fa43f18b-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:14.232 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fa61b2ce-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:14 CET 2016, executionId=fa43f18b-d961-11e5-9208-8851fb556b23, processInstanceId=fa43f18b-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.295 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.354 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fa61b2ce-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.417 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa9a9d33-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.418 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa9a9d37-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.419 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fa9b126a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.420 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fa613d99-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:14.421 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fa7e147c-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:14 CET 2016, executionId=fa613d99-d961-11e5-9208-8851fb556b23, processInstanceId=fa613d99-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.483 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.542 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fa7e147c-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.605 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fab725f1-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.606 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fab74d05-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.607 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fab7c238-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.608 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fa7d5127-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:14.609 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fa9b126a-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:14 CET 2016, executionId=fa7d5127-d961-11e5-9208-8851fb556b23, processInstanceId=fa7d5127-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.667 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.732 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fa9b126a-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.790 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fad3608f-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.792 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fad36093-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.793 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fad423e6-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.794 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fa9a9d35-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:14.795 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fab7c238-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:14 CET 2016, executionId=fa9a9d35-d961-11e5-9208-8851fb556b23, processInstanceId=fa9a9d35-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.852 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.917 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fab7c238-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:14.977 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='faefe94d-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.977 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='faf01061-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.979 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='faf05e84-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:14.980 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fab74d03-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:14.980 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fad423e6-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:14 CET 2016, executionId=fab74d03-d961-11e5-9208-8851fb556b23, processInstanceId=fab74d03-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.039 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.099 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fad423e6-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.161 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb0bfcdb-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.162 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb0c23ef-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.163 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb0c9922-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.164 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fad36091-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:15.165 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=faf05e84-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:14 CET 2016, executionId=fad36091-d961-11e5-9208-8851fb556b23, processInstanceId=fad36091-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.224 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.289 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job faf05e84-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.351 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb28fac9-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.352 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb2921dd-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.355 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb29be20-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.356 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[faefe94f-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:15.356 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fb0c9922-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:15 CET 2016, executionId=faefe94f-d961-11e5-9208-8851fb556b23, processInstanceId=faefe94f-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.416 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.484 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fb0c9922-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.542 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb461fc7-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.542 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb4646db-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.543 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb4694fe-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.544 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fb0c23ed-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:15.545 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fb29be20-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:15 CET 2016, executionId=fb0c23ed-d961-11e5-9208-8851fb556b23, processInstanceId=fb0c23ed-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.606 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.666 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fb29be20-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.728 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb628175-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.728 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb62a889-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.730 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb62f6ac-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.731 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fb2921db-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:15.732 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fb4694fe-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:15 CET 2016, executionId=fb2921db-d961-11e5-9208-8851fb556b23, processInstanceId=fb2921db-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.793 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.856 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fb4694fe-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.913 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb7ebc13-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.913 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb7ee327-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.917 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb7f7f6a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:15.918 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fb461fc9-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:15.918 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fb62f6ac-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:15 CET 2016, executionId=fb461fc9-d961-11e5-9208-8851fb556b23, processInstanceId=fb461fc9-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:15.975 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.037 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fb62f6ac-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.093 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb9a3361-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.101 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb9a3365-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.103 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fb9c0828-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.104 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fb62a887-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:16.105 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fb7f7f6a-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:15 CET 2016, executionId=fb62a887-d961-11e5-9208-8851fb556b23, processInstanceId=fb62a887-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.159 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.217 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fb7f7f6a-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.277 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fbb646ef-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.277 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fbb646f3-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.279 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fbb6bc26-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.280 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fb7ebc15-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:16.281 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fb9c0828-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:16 CET 2016, executionId=fb7ebc15-d961-11e5-9208-8851fb556b23, processInstanceId=fb7ebc15-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.339 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.403 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fb9c0828-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.457 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fbd1972d-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.457 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fbd1be41-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.460 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fbd25a84-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.461 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fb9a3363-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:16.461 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fbb6bc26-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:16 CET 2016, executionId=fb9a3363-d961-11e5-9208-8851fb556b23, processInstanceId=fb9a3363-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.518 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.582 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fbb6bc26-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.640 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fbedaabb-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.642 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fbedd1cf-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.643 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fbee4702-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.644 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fbb646f1-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:16.647 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fbd25a84-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:16 CET 2016, executionId=fbb646f1-d961-11e5-9208-8851fb556b23, processInstanceId=fbb646f1-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.709 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.768 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fbd25a84-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.830 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc0acfb9-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.831 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc0acfbd-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.832 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc0b1de0-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:16.833 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fbd1be3f-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:16.833 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fbee4702-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:16 CET 2016, executionId=fbd1be3f-d961-11e5-9208-8851fb556b23, processInstanceId=fbd1be3f-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.895 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:16.955 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fbee4702-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.018 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc275877-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.018 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc277f8b-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.019 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc27cdae-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.021 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fbedaabd-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:17.021 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fc0b1de0-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:16 CET 2016, executionId=fbedaabd-d961-11e5-9208-8851fb556b23, processInstanceId=fbedaabd-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.082 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.145 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fc0b1de0-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.203 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc439215-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.205 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc43b929-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.206 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc44556c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.207 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fc0acfbb-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:17.208 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fc27cdae-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:17 CET 2016, executionId=fc0acfbb-d961-11e5-9208-8851fb556b23, processInstanceId=fc0acfbb-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.267 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.331 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fc27cdae-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.393 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc60b713-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.394 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc60b717-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.395 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc612c4a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.396 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fc275879-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:17.397 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fc44556c-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:17 CET 2016, executionId=fc275879-d961-11e5-9208-8851fb556b23, processInstanceId=fc275879-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.458 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.522 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fc44556c-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.580 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc7d18c1-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.580 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc7d3fd5-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.582 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc7d8df8-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.583 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fc43b927-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:17.584 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fc612c4a-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:17 CET 2016, executionId=fc43b927-d961-11e5-9208-8851fb556b23, processInstanceId=fc43b927-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.645 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.708 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fc612c4a-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.767 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc99a17f-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.767 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc99c893-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.770 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fc9a64d6-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.771 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fc60b715-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:17.771 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fc7d8df8-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:17 CET 2016, executionId=fc60b715-d961-11e5-9208-8851fb556b23, processInstanceId=fc60b715-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.831 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.895 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fc7d8df8-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:17.958 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fcb6c67d-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.959 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fcb6ed91-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.960 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fcb73bb4-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:17.961 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fc7d3fd3-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:17.962 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fc9a64d6-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:17 CET 2016, executionId=fc7d3fd3-d961-11e5-9208-8851fb556b23, processInstanceId=fc7d3fd3-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.022 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.081 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fc9a64d6-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.144 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fcd3282b-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.144 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fcd34f3f-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.146 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fcd39d62-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.147 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fc99a181-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:18.147 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fcb73bb4-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:17 CET 2016, executionId=fc99a181-d961-11e5-9208-8851fb556b23, processInstanceId=fc99a181-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.209 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.273 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fcb73bb4-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.331 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fcefb0e9-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.333 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fcefb0ed-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.335 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fcf07440-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.336 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fcb6ed8f-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:18.336 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fcd39d62-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:18 CET 2016, executionId=fcb6ed8f-d961-11e5-9208-8851fb556b23, processInstanceId=fcb6ed8f-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.395 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.459 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fcd39d62-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.522 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd0cd5e7-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.522 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd0cfcfb-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.524 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd0d4b1e-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.525 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fcd34f3d-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:18.525 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fcf07440-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:18 CET 2016, executionId=fcd34f3d-d961-11e5-9208-8851fb556b23, processInstanceId=fcd34f3d-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.586 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.645 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fcf07440-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.708 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd295ea5-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.709 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd295ea9-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.710 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd29accc-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.711 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fcefb0eb-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:18.711 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fd0d4b1e-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:18 CET 2016, executionId=fcefb0eb-d961-11e5-9208-8851fb556b23, processInstanceId=fcefb0eb-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.772 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.836 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fd0d4b1e-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.893 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd457233-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.893 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd459947-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.897 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd46358a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:18.898 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fd0cd5e9-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:18.898 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fd29accc-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:18 CET 2016, executionId=fd0cd5e9-d961-11e5-9208-8851fb556b23, processInstanceId=fd0cd5e9-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:18.958 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.021 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fd29accc-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.084 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd629731-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.084 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd62be45-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.086 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd630c68-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.087 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fd295ea7-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:19.087 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fd46358a-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:18 CET 2016, executionId=fd295ea7-d961-11e5-9208-8851fb556b23, processInstanceId=fd295ea7-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.148 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.207 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fd46358a-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.270 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd7ef8df-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.270 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd7f1ff3-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.271 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd7f6e16-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.272 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fd459945-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:19.273 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fd630c68-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:19 CET 2016, executionId=fd459945-d961-11e5-9208-8851fb556b23, processInstanceId=fd459945-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.334 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.398 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fd630c68-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.456 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd9b819d-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.457 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd9b81a1-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.460 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fd9c1de4-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.461 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fd62be43-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:19.461 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fd7f6e16-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:19 CET 2016, executionId=fd62be43-d961-11e5-9208-8851fb556b23, processInstanceId=fd62be43-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.521 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.590 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fd7f6e16-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.643 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fdb7e34b-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.645 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fdb80a5f-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.647 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fdb8a6a2-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.648 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fd7ef8e1-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:19.651 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fd9c1de4-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:19 CET 2016, executionId=fd7ef8e1-d961-11e5-9208-8851fb556b23, processInstanceId=fd7ef8e1-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.713 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.772 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fd9c1de4-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.835 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fdd55669-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.836 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fdd5566d-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.837 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fdd5a490-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:19.838 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fd9b819f-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:19.838 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fdb8a6a2-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:19 CET 2016, executionId=fd9b819f-d961-11e5-9208-8851fb556b23, processInstanceId=fd9b819f-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.897 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:19.959 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fdb8a6a2-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.015 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fdf0a6a7-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.016 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fdf0cdbb-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.019 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fdf169fe-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.020 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fdb80a5d-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:20.021 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fdd5a490-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:19 CET 2016, executionId=fdb80a5d-d961-11e5-9208-8851fb556b23, processInstanceId=fdb80a5d-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.077 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.141 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fdd5a490-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.199 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe0cba35-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.201 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe0ce149-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.202 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe0d7d8c-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.203 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fdd5566b-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:20.205 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fdf169fe-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:20 CET 2016, executionId=fdd5566b-d961-11e5-9208-8851fb556b23, processInstanceId=fdd5566b-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.269 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.329 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fdf169fe-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.391 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe2a2d53-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.392 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe2a2d57-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.393 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe2a7b7a-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.394 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fdf0a6a9-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:20.394 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fe0d7d8c-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:20 CET 2016, executionId=fdf0a6a9-d961-11e5-9208-8851fb556b23, processInstanceId=fdf0a6a9-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.456 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.515 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fe0d7d8c-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.578 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe468e01-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.578 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe46b515-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.580 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe470338-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.581 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fe0cba37-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:20.581 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fe2a7b7a-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:20 CET 2016, executionId=fe0cba37-d961-11e5-9208-8851fb556b23, processInstanceId=fe0cba37-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.643 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.707 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fe2a7b7a-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.770 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe63da0f-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.771 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe640123-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.772 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe644f46-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.773 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fe2a2d55-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:20.773 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fe470338-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:20 CET 2016, executionId=fe2a2d55-d961-11e5-9208-8851fb556b23, processInstanceId=fe2a2d55-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.830 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.894 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fe470338-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:20.957 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe8062cd-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.957 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe8089e1-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.958 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe80d804-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:20.959 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fe46b513-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:20.960 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fe644f46-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:20 CET 2016, executionId=fe46b513-d961-11e5-9208-8851fb556b23, processInstanceId=fe46b513-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:21.022 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:21.081 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14006 Exception while executing job fe644f46-d961-11e5-9208-8851fb556b23: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:21.143 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe9cc47b-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:21.143 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe9ceb8f-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:21.144 INFO [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logInfo ENGINE-14008 Adding new exclusive job to job executor context. Job Id='fe9d39b2-d961-11e5-9208-8851fb556b23'
22-Feb-2016 13:44:21.146 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16006 BPMN Stack Trace:
	ServiceTask_1 (activity-execute, ProcessInstance[fe640121-d961-11e5-9208-8851fb556b23])
	ServiceTask_1

22-Feb-2016 13:44:21.146 WARNING [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logWarn ENGINE-14002 Exception while executing job MessageEntity[repeatnull, id=fe80d804-d961-11e5-9208-8851fb556b23, revision=1, duedate=null, lockOwner=f317f725-7d0d-4a8e-ac07-a213db646349, lockExpirationTime=Mon Feb 22 13:49:20 CET 2016, executionId=fe640121-d961-11e5-9208-8851fb556b23, processInstanceId=fe640121-d961-11e5-9208-8851fb556b23, isExclusive=true, retries=3, jobHandlerType=async-continuation, jobHandlerConfiguration=transition-create-scope$SequenceFlow_1, exceptionByteArray=null, exceptionByteArrayId=null, exceptionMessage=null, deploymentId=e5e6bd87-d960-11e5-a633-8851fb556b23]: 
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more

22-Feb-2016 13:44:21.208 SEVERE [pool-2-thread-29] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
 org.camunda.bpm.engine.ProcessEngineException: Unknown property used in expression: ${logService.log('ping')}. Cause: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:60)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:46)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior$1.call(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:105)
	at org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:42)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:41)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:26)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:56)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:26)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:505)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:480)
	at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:159)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:494)
	at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:471)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionCreateScope.scopeCreated(PvmAtomicOperationTransitionCreateScope.java:34)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:49)
	at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCreateScope.execute(PvmAtomicOperationCreateScope.java:23)
	at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:81)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.invokeNext(CommandContext.java:180)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performNext(CommandContext.java:167)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:134)
	at org.camunda.bpm.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:124)
	at org.camunda.bpm.engine.impl.jobexecutor.AsyncContinuationJobHandler.execute(AsyncContinuationJobHandler.java:92)
	at org.camunda.bpm.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:124)
	at org.camunda.bpm.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:103)
	at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
	at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:95)
	at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
	at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:79)
	at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:66)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.camunda.bpm.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'logService'
	at org.camunda.bpm.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
	at org.camunda.bpm.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
	at org.camunda.bpm.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
	at org.camunda.bpm.engine.impl.juel.AstEval.eval(AstEval.java:50)
	at org.camunda.bpm.engine.impl.juel.AstNode.getValue(AstNode.java:26)
	at org.camunda.bpm.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
	at org.camunda.bpm.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:36)
	at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:86)
	at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:58)
	at org.camunda.bpm.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
	... 66 more