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StaleObjectStateException on jBPM 5.1 running on JBoss 6.1
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created by <a href="https://community.jboss.org/people/lpham1">Linh Pham</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/724897#724897">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi All,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I got an intermittent StaleObjectStateException while completing a Human Task in jBPM. My current set up is as follows:</p><p>- Message Driven Bean processes a message, and invokes jBPM to complete a human task:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    @TransactionAttribute(value = TransactionAttributeType.REQUIRES_NEW)</p><p>    public void onMessage(Message message)</p><p>    {</p><p>        try</p><p>        {</p><p>               // pulling out the sessionId, workItemId, and resultsMap  from the message</p><p>            final StatefulKnowledgeSession ksession = ((JbpmLauncher) new InitialContext().lookup("java:module/JbpmLauncher")).getSession(sessionId);</p><p>            ksession.getWorkItemManager().completeWorkItem(inbound.getWorkItemId(), inbound.getResultsMap());</p><p>        }</p><p>        catch(NamingException e)</p><p>        {</p><p>            LOGGER.error("Encounterred exception", e);</p><p>            throw new WorkflowException("Unable to find the JBPM Launcher. ", e);    //WorkflowException is RuntimeException with @ApplicationException annotation.</p><p>        }</p><p>        catch(Exception e)</p><p>        {</p><p>            LOGGER.error("Encounterred exception", e);</p><p>            throw new WorkflowException(e);   //WorkflowException is RuntimeException with @ApplicationException annotation.</p><p>        }</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Intermittently, I got StaleObjectStateException and the stack trace is here: <a class="jive-link-external-small" href="http://pastebin.com/HxUfSPh5">http://pastebin.com/HxUfSPh5</a></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am using jBPM 5.1, JBoss 6.1, the jbpm-ds.xml is XA datasource with transaction isolation of TRANSACTION_READ_COMMITTED.  JMS implementation is ActiveMQ with XA Datasource.</p><p>My environment is very low traffic, with just one user doing testing at the moment.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Is there a way to reliably reproduce the problem? And more importantly how can I get around this StaleObjectStateException? </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks for your help.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Linh</p></div>
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