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Re: TaskServer, persistence file and session
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created by <a href="http://community.jboss.org/people/mariemm">Marie MM</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/592661#592661">View the full discussion</a>
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<div class="jive-rendered-content"><p>Ok, I will try one error now:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I changed the example <a class="jive-link-external-small" href="http://">Simple emergency</a> to be able save process info in DB, with ksession = JPAKnowledgeService.newStatefulKnowledgeSession(kbase, config, env );</p><p>This is OK, it saves all data as expected.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Then I added the task service (based on another <a class="jive-link-blog-small" href="http://community.jboss.org/people/bpmn2user/blog/2011/02/27/helloprocess-example-using-jbpm5-eclipse-plug-in">HelloProcess example</a>):</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        TaskService taskService = new TaskService(emf, SystemEventListenerFactory.getSystemEventListener());</p><p>        TaskServiceSession taskSession = taskService.createSession();</p><p>        taskSession.addUser(new User("Admin"));</p><p>        taskSession.addUser(new User("kris"));</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>When I run the test, it stops in taskSession.addUser(new User("Admin")); with </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>A JTA EntityManager cannot use getTransaction()</p><p>java.lang.IllegalStateException: A JTA EntityManager cannot use getTransaction()</p><p>        at org.hibernate.ejb.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:324)</p><p>        at org.hibernate.ejb.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:324)</p><p>        at org.jbpm.task.service.TaskServiceSession.doOperationInTransaction(TaskServiceSession.java:707)</p><p>        at org.jbpm.task.service.TaskServiceSession.persistInTransaction(TaskServiceSession.java:682)</p><p>        at org.jbpm.task.service.TaskServiceSession.addUser(TaskServiceSession.java:69)</p><p>        at com.wordpress.salaboy.examples.ProcessTaskTest.humanTasksTest(ProcessTaskTest.java:83)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>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.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Do you have any idea about this exception? Thank you a lot for your time.</p></div>
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