David Hodges added a comment - 01/Jun/19 12:06 PM I have create a pull request for this: https://github.com/camunda/camunda-bpm-platform/pull/341

Miklas Boskamp added a comment - 07/Jun/19 3:02 PM Hi DavidHodges , Thank you very much for your contribution. I've looked into the changes you made. The provided stacktrace does not show an exception in the createFormFields method but int the handleSubmit method of the FormFieldHandler: at org.camunda.bpm.engine.impl.form.handler.FormFieldHandler.handleSubmit(FormFieldHandler.java:129) The changes you introduce in your PR do not change this method, though. Could you give more information on why these changes solve your problem? How can this error be reproduced? Another note: Although adding a test case for this is optional (since we usually don't test exception messages) you could be more assured that the introduced behavior won't change in the future. Cheers, Miklas

David Hodges added a comment - 07/Jun/19 3:04 PM The error was caused by declaring the variable as a String in one form, then declaring it as a Long in a later form. So the error occurs when it tries to display the second form.

David Hodges added a comment - 07/Jun/19 3:08 PM - edited Sorry, I submitted the wrong stack trace - that was for a different exception. The correct stack trace is as follows: 01-Jun-2019 12:22:15.393 SEVERE [http-nio-8080-exec-9] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: failed to convert ' arrayAzimuthDegrees' caused by java.lang.NumberFormatException: For input string: "" org.camunda.bpm.engine.impl.form.validator.FormFieldValidationException: failed to convert 'arrayAzimuthDegrees' caused by java.lang.NumberFormatException: For input string: " " at org.camunda.bpm.engine.impl.form.handler.FormFieldHandler.createFormField(FormFieldHandler.java:91) at org.camunda.bpm.engine.impl.form.handler.DefaultFormHandler.initializeFormFields(DefaultFormHandler.java:278) at org.camunda.bpm.engine.impl.form.handler.DefaultTaskFormHandler.createTaskForm(DefaultTaskFormHandler.java:44) at org.camunda.bpm.engine.impl.form.handler.CreateTaskFormInvocation.invoke(CreateTaskFormInvocation.java:37) at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:57) at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:90) at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:62) at org.camunda.bpm.engine.impl.form.handler.DelegateTaskFormHandler$1.call(DelegateTaskFormHandler.java:41) at org.camunda.bpm.engine.impl.form.handler.DelegateTaskFormHandler$1.call(DelegateTaskFormHandler.java:36) at org.camunda.bpm.engine.impl.form.handler.DelegateFormHandler.doCall(DelegateFormHandler.java:69) at org.camunda.bpm.engine.impl.form.handler.DelegateFormHandler$1.call(DelegateFormHandler.java:57) at org.camunda.bpm.engine.impl.context.ProcessApplicationClassloaderInterceptor.call(ProcessApplicationClassloaderInterceptor.java:47) at org.camunda.bpm.application.AbstractProcessApplication.execute(AbstractProcessApplication.java:117) at org.camunda.bpm.application.AbstractProcessApplication.execute(AbstractProcessApplication.java:128) at org.camunda.bpm.engine.impl.context.Context.executeWithinProcessApplication(Context.java:194) at org.camunda.bpm.engine.impl.context.Context.executeWithinProcessApplication(Context.java:181) at org.camunda.bpm.engine.impl.form.handler.DelegateFormHandler.performContextSwitch(DelegateFormHandler.java:55) at org.camunda.bpm.engine.impl.form.handler.DelegateTaskFormHandler.createTaskForm(DelegateTaskFormHandler.java:36) at org.camunda.bpm.engine.impl.cmd.GetTaskFormCmd.execute(GetTaskFormCmd.java:56) at org.camunda.bpm.engine.impl.cmd.GetTaskFormCmd.execute(GetTaskFormCmd.java:34) at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:27) at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:106) at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:69) at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:32) at org.camunda.bpm.engine.impl.FormServiceImpl.getTaskFormData(FormServiceImpl.java:66) at org.camunda.bpm.engine. rest .sub.task.impl.TaskResourceImpl.getForm(TaskResourceImpl.java:186) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:167) at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:257) at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:222) at org.jboss.resteasy.core.ResourceLocator.invokeOnTargetObject(ResourceLocator.java:159) at org.jboss.resteasy.core.ResourceLocator.invoke(ResourceLocator.java:107) at org.jboss.resteasy.core.ResourceLocator.invokeOnTargetObject(ResourceLocator.java:154) at org.jboss.resteasy.core.ResourceLocator.invoke(ResourceLocator.java:92) at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:542)

Miklas Boskamp added a comment - 11/Jun/19 10:07 AM Hi DavidHodges , I have reviewed your pull request and it looks good. If you would like to submit a test case for your changes please let me know. Otherwise, I will merge this into master. A test case would make your changes more future proof, as behavior covered by tests is more likely to stay unchanged. Cheers, Miklas

Miklas Boskamp added a comment - 13/Jun/19 10:35 AM Hi DavidHodges , since I did not hear from you regarding test coverage I will just merge your changes. Thanks again for your contribution. Have a great day! Cheers, Miklas