Tim Kutz [https://community.jboss.org/people/tim.kutz] created the discussion "Re: InvocationTargetException when creating StatefulKnowledgeSession" To view the discussion, visit: https://community.jboss.org/message/722867#722867 -------------------------------------------------------------- jtaManager is the JBoss TransactionManager (arjuna).  It's injected, as the class where the above code lives is actually an MBean. I've made some - limited - progress with this.  It appears that the JPAKnowledgeService doesn't like to participate in an existing JTA transaction.  By marking the method with @TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED), I am able to get a session created within a UserTransaction.  The code now looks like this: UserTransaction txn = retrieveTransaction(); txn.begin(); kSession =     JPAKnowledgeService.newStatefulKnowledgeSession( kBase, null, env ); kSession.getWorkItemManager().registerWorkItemHandler("ValidationService", new ValidationTaskWorkItemHandler()); kSession.getWorkItemManager().registerWorkItemHandler("SubscriptionEventUpdateService", new SubscriptionHistoryWorkItemHandler()); kSession.getWorkItemManager().registerWorkItemHandler("ImmunizationService", new JMSWorkItemHandler()); kSession.getWorkItemManager().registerWorkItemHandler("SchoolFormService", new JMSWorkItemHandler()); kSession.getWorkItemManager().registerWorkItemHandler("LegacySubscriptionService", new JMSWorkItemHandler()); I'm not thrilled about having to deal with UserTransaction, though.  Isn't this supposed to support standard managed transactions?  Is there something additional I need to provide to the env for it to participate normally? -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/722867#722867] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]

Maciej Swiderski [https://community.jboss.org/people/swiderski.maciej] created the discussion "Re: InvocationTargetException when creating StatefulKnowledgeSession" To view the discussion, visit: https://community.jboss.org/message/724232#724232 -------------------------------------------------------------- I agree that transaction management should be first of all consistent across invocations of new session and loading from data store and should support joining transactions. As you mentioned it runs in MBean do you see same behaviour in regular let's say web application? I will try to find some time to look into that but can't promise when it will happen -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/724232#724232] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]