JPA exceptions and JTA rollback

[Tamas Polgar]

Hi,
This topic is not exactly clear for me

I have few examples

I have a stateless bean:

public class Bean implements Service {
  @PersistenceContext
  private EntityManager em;

  @EJB
  private Service2 service2;

  @Override
  public void method () {
    User u = new User ();
    u.setName("NewUser");
    em.persist(u);
////  1.
//    Query queryWithMoreResults = em.createQuery ("SELECT u FROM User u"); 
//    User u2 = queryWithMoreResults.getSingleResult (); //throws a NonUniqueResultException

////  2.
//    Integer notExistingId = 123;
//    User u2 = em.getReference (User.class, notExistingId);
//    try {
//      u.getName (); // throws a EntityNotFoundException
//    } catch (EntityNotFoundException e) {
//      //do nothing
//    }

////  3.
//    service2.doNonUniqueResultException(); // throws NonUniqueResultException

////  4.
//    try {
//      service2.doEntityNotFoundException(); // throws EntityNotFoundException
//    } catch (EntityNotFoundException e) {
//      // do nothing
//    }

////  5.
//    try {
//      service2.doNonUniqueResultException(); // throws NonUniqueResultException
//    } catch (NonUniqueResultException e) {
//      // do nothing
//    }
  }
}

(1,3,5)
NonUniqueResultException should NOT mark the transaction rollback. But the call throws an Exception.
Should the new user be saved?

(2,4)
EntityNotFoundException should mark the transaction rollback. But I catch the exception.
Should the new user be saved?

I tried them with jboss,
1: rolled back
2: didnt roll back
3: rolled back
4: rolled back
5: rolled back

But I think the output should be different

?

Thank you