Cannot declare a shared engine in processes.xml that uses Spin/Connect on Glassfish, WLS and WAS

<?xml version="1.0" encoding="UTF-8"?>
<process-application
  xmlns="http://www.camunda.org/schema/1.0/ProcessApplication"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.camunda.org/schema/1.0/ProcessApplication http://www.camunda.org/schema/1.0/ProcessApplication ">

  <process-engine name="engine1">
    <job-acquisition>default</job-acquisition>
    <configuration>org.camunda.bpm.engine.impl.cfg.JtaProcessEngineConfiguration</configuration>
    <datasource>jdbc/ProcessEngine</datasource>
    <properties>
      <property name="history">full</property>
      <property name="jobExecutorDeploymentAware">true</property>
      <property name="producePrioritizedJobs">true</property>
      <property name="transactionManagerJndiName">java:appserver/TransactionManager</property>
    </properties>
    
    <plugins>
      <plugin>
        <class&gt;org.camunda.spin.plugin.impl.SpinProcessEnginePlugin</class&gt;
      </plugin>
    </plugins>
  </process-engine>
  <process-archive name="archive1">
    <process-engine>engine1</process-engine>
    
    <properties>      
      <property name="isDeleteUponUndeploy">true</property>
    </properties>
  </process-archive>
</process-application>