[jboss-user] [JBoss jBPM] - JTA transaction error inside jboss portal

portal 2.7.2 jbpm 3.2.2 hi all when accessing the JBPM context inside a portlet of jboss portal the following JTA error occurs depending whether the the context is created or get Current is called. i read the details of jbpm transation here http://docs.jboss.org/jbpm/v3/userguide/deployment.html I thought i understood the JBPM JTA settings but i have totally lost now. my JTA settings are below. | <jbpm-context> | <service name="persistence" factory="org.jbpm.persistence.jta.JtaDbPersistenceServiceFactory" /> | <service name="scheduler" factory="org.jbpm.scheduler.db.DbSchedulerServiceFactory" /> | <service name="message" factory="org.jbpm.msg.db.DbMessageServiceFactory" /> | <service name="tx" factory="org.jbpm.tx.TxServiceFactory"/> | </jbpm-context> | When calling getCurrentJbpmContext() as in below, a 'Session closed' error occurs. | WorkflowService workflowService = (WorkflowService) ctx.lookup("java:/portal/WorkflowService") | writer.println( "workflowService:" + workflowService ); | | JbpmContext context = workflowService.getJbpmConfiguration().getCurrentJbpmContext(); | | List<ProcessDefinition> taskList = context.getGraphSession().findAllProcessDefinitions(); | So an existing context is found but the hibernate session is closed. | 2009-07-27 16:21:52,222 ERROR [STDERR] org.hibernate.SessionException: Session is closed! | at org.hibernate.impl.AbstractSessionImpl.errorIfClosed(AbstractSessionImpl.java:49) | at org.hibernate.impl.SessionImpl.getNamedQuery(SessionImpl.java:1258) | at org.jbpm.db.GraphSession.findAllProcessDefinitions(GraphSession.java:209) | at org.jboss.portal.portlet.samples.SimplestHelloWorldPortlet.doView(SimplestHelloWorldPortlet.java:76) | So when i call createJbpmContext(), the JTA complains that an existing transaction is already on the current thread. | WorkflowService workflowService = (WorkflowService) ctx.lookup("java:/portal/WorkflowService") | writer.println( "workflowService:" + workflowService ); | | JbpmContext context = workflowService.getJbpmConfiguration().createJbpmContext(); | | List<ProcessDefinition> taskList = context.getGraphSession().findAllProcessDefinitions(); | | Cause: org.jboss.portal.portlet.PortletInvokerException: java.lang.IllegalStateException: BaseTransaction.checkTransactionState - [com.arjuna.ats.internal.jta.transaction.arjunacore.alreadyassociated] [com.arjuna.ats.internal.jta.transaction.arjunacore.alreadyassociated] thread is already associated with a transaction! | Message: java.lang.IllegalStateException: BaseTransaction.checkTransactionState - [com.arjuna.ats.internal.jta.transaction.arjunacore.alreadyassociated] [com.arjuna.ats.internal.jta.transaction.arjunacore.alreadyassociated] thread is already associated with a transaction! | StackTrace: | | org.jboss.portal.portlet.PortletInvokerException: java.lang.IllegalStateException: BaseTransaction.checkTransactionState - [com.arjuna.ats.internal.jta.transaction.arjunacore.alreadyassociated] [com.arjuna.ats.internal.jta.transaction.arjunacore.alreadyassociated] thread is already associated with a transaction! | at org.jboss.portal.portlet.aspects.portlet.ContextDispatcherInterceptor.invoke(ContextDispatcherInterceptor.java:101) | at org.jboss.portal.portlet.PortletInvokerInterceptor.invoke(PortletInvokerInterceptor.java:82) | at org.jboss.portal.portlet.aspects.portlet.SecureTransportInterceptor.invoke(SecureTransportInterceptor.java:69) | at org.jboss.portal.portlet.PortletInvokerInterceptor.invoke(PortletInvokerInterceptor.java:82) | at org.jboss.portal.portlet.aspects.portlet.ValveInterceptor.invoke(ValveInterceptor.java:75) | at org.jboss.portal.portlet.PortletInvokerInterceptor.invoke(PortletInvokerInterceptor.java:82) | at org.jboss.portal.portlet.container.ContainerPortletInvoker.invoke(ContainerPortletInvoker.java:116) | | how is jbpm configured to use the existing JTA inside portal? any help is most appreciated. -lp View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4246093#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...