"gavin.king(a)jboss.com" wrote : Fixed, HTH. Thanks Gavin. This does work, but should I be concerned about the following WARN level trace? | 11:56:27,828 WARN [arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator_4] TwoPhaseCoordinator.afterCompletion - returned failure for com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple@1e3a7ec | 11:56:27,828 WARN [arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator_4] TwoPhaseCoordinator.afterCompletion - returned failure for com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple@125b88c | 11:56:27,828 WARN [arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator_4] TwoPhaseCoordinator.afterCompletion - returned failure for com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple@1770daa | 11:56:27,828 WARN [arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator_4] TwoPhaseCoordinator.afterCompletion - returned failure for com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple@122292a | Can you give me a brief overview on what this synchronization registry is all about? I'm in a normal JBoss4.2/JTA environment. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4058988#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...