[jboss-user] [jBPM] - Re: TaskServer, persistence file and session

[Marie MM]

Marie MM [http://community.jboss.org/people/mariemm] created the discussion

"Re: TaskServer, persistence file and session"

To view the discussion, visit: http://community.jboss.org/message/592661#592661

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Ok, I will try one error now:

I changed the example  http:// Simple emergency to be able save process info in DB, with ksession = JPAKnowledgeService.newStatefulKnowledgeSession(kbase, config, env );
This is OK, it saves all data as expected.

Then I added the task service (based on another  http://community.jboss.org/people/bpmn2user/blog/2011/02/27/helloprocess-example-using-jbpm5-eclipse-plug-in HelloProcess example):

        TaskService taskService = new TaskService(emf, SystemEventListenerFactory.getSystemEventListener());
        TaskServiceSession taskSession = taskService.createSession();
        taskSession.addUser(new User("Admin"));
        taskSession.addUser(new User("kris"));


When I run the test, it stops in taskSession.addUser(new User("Admin")); with 

A JTA EntityManager cannot use getTransaction()
java.lang.IllegalStateException: A JTA EntityManager cannot use getTransaction()
        at org.hibernate.ejb.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:324)
        at org.hibernate.ejb.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:324)
        at org.jbpm.task.service.TaskServiceSession.doOperationInTransaction(TaskServiceSession.java:707)
        at org.jbpm.task.service.TaskServiceSession.persistInTransaction(TaskServiceSession.java:682)
        at org.jbpm.task.service.TaskServiceSession.addUser(TaskServiceSession.java:69)
        at com.wordpress.salaboy.examples.ProcessTaskTest.humanTasksTest(ProcessTaskTest.java:83)


I tried several different ways to get rid of it, nothing worked. I am using persistence unit with all classes together. See persistence.xml in attachment.

Do you have any idea about this exception? Thank you a lot for your time.
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