Ok, I will try one error now:
I changed the example 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 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.