How to rollback transaction in conversation bean managed by container? I use Seam managed transaction because it helps me with lazyInitializationException, so I can't manually manage transactions.

1)Simply throwing exception cause displaying debug page

2)throwing exception from method annotated with

@TransactionAttribute(value = REQUIRES_NEW)
@Transactional(TransactionPropagationType.REQUIRED)

and catching it in another method doesn't rollback transaction at all.

2)

@Resource
protected SessionContext sessionContext;
sessionContext.setRollbackOnly

cause something strange with conversation - while transaction rollbacks, application state is incosistent.

3)Any try with:

(PersistentContext/entitiManager).getTransaction().rollback();

cause

Caused by: javax.ejb.EJBTransactionRolledbackException: JTA EntityManager cannot access a transactions

which is logical.

4)I can do:

@Begin(flushMode=FlushModeType.MANUAL)

but there is no entitymanager.rollback or sth similair, so how to rollback?