private void configure() {

runtime.getKieSession()

     .getWorkItemManager()

     .registerWorkItemHandler("Email",    

               new DupontEmailWorkItemHandler());

     runtime.getKieSession().getWorkItemManager()

     .registerWorkItemHandler("Rest", new RESTWorkItemHandler());

}

Tenho está classe onde registra o RestWorkitem

sempre ue tenho mais de uma sessao aberta sempre ocorre o erro

Caused by: javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.

at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1177)

at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:126)

at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75)

at org.jboss.as.ejb3.tx.CMTTxInterceptor.endTransaction(CMTTxInterceptor.java:92)

... 80 more

Caused by: javax.persistence.OptimisticLockException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.jbpm.persistence.processinstance.ProcessInstanceInfo#at org.hibernate.ejb.AbstractEntityManagerImpl.wrapStaleStateException(AbstractEntityManagerImpl.java:1416)

at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1329)

at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1310)

at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1316)

at org.hibernate.ejb.AbstractEntityManagerImpl$CallbackExceptionMapperImpl.mapManagedFlushFailure(AbstractEntityManagerImpl.java:1510)

at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:118)

at org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:53)

at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:76)

at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:273)

at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:93)

at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:162)

at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1165)

... 83 more

Caused by: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.jbpm.persistence.processinstance.ProcessInstanceInfo#at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:2523)

at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3242)

at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:3140)

at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3470)

at org.hibernate.action.internal.EntityUpdateAction.execute(EntityUpdateAction.java:140)

at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:393)

at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:385)

at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:302)

at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:339)

at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52)

at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1240)

at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:404)

at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:113)

... 89 more

alguem poderia me ajudar