Hi, I would like to know if somebody could help me. I have a process with a timer launched at the node-leave event of start-state (t=0 second in my example). This timer have a duedate of 60 seconds then it takes a transition. Here is my process: <?xml version="1.0" encoding="UTF-8"?> | | <process-definition xmlns="urn:jbpm.org:jpdl-3.2" name="process7"> | | <start-state name="start-state"> | <event type="node-leave"> | <script>System.out.println("Validity period timer launched.");</script> | <create-timer name="ValidityPeriodTimer" duedate="2 minutes" transition="to timeout"> | <script>System.out.println("Validity period expired! Transition to timeout.");</script> | </create-timer> | </event> | <transition to="state1" name="to state1"/> | </start-state> | | <state name="state1"> | <transition to="state2" name="to state2"/> | <transition to="timeout" name="to timeout"/> | </state> | | <state name="state2"> | <transition to="end-state" name="to end-state"/> | <transition to="timeout" name="to timeout"/> | </state> | | <end-state name="end-state"/> | | <state name="timeout"> | <transition to="end-state" name="to end-state"/> | </state> | | </process-definition> I deploy it on my JBoss AS and I start it in my jsf-console. All is good. Now, i'm doing some tests: 1- If i stop JBoss at 20 seconds and if I restart it at 50 seconds, the transition is taken at 60 seconds, it's OK. 2- If i stop JBoss at 20 seconds and if I restart it a 70 seconds, the transition is taken at 71 seconds, it's OK. BUT: 3- If is stop my DB at 20 sec with JBoss AS always alive and i restart it at 50 seconds, it's not OK, i have this exception: 15:37:07,782 WARN [TxConnectionManager] Connection error occured: org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener@c57076[state=NORMAL mc=org.jboss.resource.adapter.jdbc.xa.XAManagedConnection@5a6d04 handles=0 lastUse=1237991707886 permit=true trackByTx=true mcp=org.jboss.resource.connectionmanager.JBossManagedConnectionPool$OnePool@1165281 context=org.jboss.resource.connectionmanager.InternalManagedConnectionPool@82b79d xaResource=org.jboss.resource.adapter.jdbc.xa.XAManagedConnection@5a6d04 txSync=null] | oracle.jdbc.xa.OracleXAException | at oracle.jdbc.xa.OracleXAResource.checkError(OracleXAResource.java:938) | at ?????? | | | | 15:37:07,813 ERROR [STDERR] java.lang.IllegalMonitorStateException | 15:37:07,813 ERROR [STDERR] at java.util.concurrent.locks.ReentrantLock$Sync.tryRelease(Unknown Source) | 15:37:07,813 ERROR [STDERR] at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(Unknown Source) | 15:37:07,813 ERROR [STDERR] at java.util.concurrent.locks.ReentrantLock.unlock(Unknown Source) | 15:37:07,813 ERROR [STDERR] at org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.unlock(BaseWrapperManagedConnection.java:277) | 15:37:07,813 ERROR [STDERR] at org.jboss.resource.adapter.jdbc.xa.XAManagedConnection.start(XAManagedConnection.java:235) | 15:37:07,813 ERROR [STDERR] at ?????? | 15:37:07,813 ERROR [STDERR] at org.jboss.ejb.txtimer.TimedObjectInvokerImpl.callTimeout(TimedObjectInvokerImpl.java:104) | 15:37:07,813 ERROR [STDERR] at org.jboss.ejb.txtimer.TimerImpl$TimerTaskImpl.run(TimerImpl.java:561) | 15:37:07,813 ERROR [STDERR] at java.util.TimerThread.mainLoop(Unknown Source) | 15:37:07,813 ERROR [STDERR] at java.util.TimerThread.run(Unknown Source) | | | | 15:37:07,813 ERROR [LogInterceptor] EJBException in method: public abstract void javax.ejb.TimedObject.ejbTimeout(javax.ejb.Timer), causedBy: | org.jboss.util.NestedSQLException: Could not enlist in transaction on entering meta-aware object!; - nested throwable: (javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist resource, see the previous warnings. tx=TransactionImple < ac, BasicAction: a0aa4b2:991:49ca40e5:f6 status: ActionStatus.ABORT_ONLY >); - nested throwable: (org.jboss.resource.JBossResourceException: Could not enlist in transaction on entering meta-aware object!; - nested throwable: (javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist resource, see the previous warnings. tx=TransactionImple < ac, BasicAction: a0aa4b2:991:49ca40e5:f6 status: ActionStatus.ABORT_ONLY >)) | at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:95) | at ?????? | | | | 15:37:07,813 ERROR [TimerImpl] Error invoking ejbTimeout | javax.ejb.EJBException: Load failed | at org.jboss.ejb.plugins.cmp.jdbc.JDBCLoadEntityCommand.execute(JDBCLoadEntityCommand.java:251) | at ?????? | Caused by: org.jboss.util.NestedSQLException: Could not enlist in transaction on entering meta-aware object!; - nested throwable: (javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist resource, see the previous warnings. tx=TransactionImple < ac, BasicAction: a0aa4b2:991:49ca40e5:f6 status: ActionStatus.ABORT_ONLY >); - nested throwable: (org.jboss.resource.JBossResourceException: Could not enlist in transaction on entering meta-aware object!; - nested throwable: (javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist resource, see the previous warnings. tx=TransactionImple < ac, BasicAction: a0aa4b2:991:49ca40e5:f6 status: ActionStatus.ABORT_ONLY >)) | at ?????? | | 15:37:07,938 WARN [TxConnectionManager] Connection error occured: org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener@1c50966[state=NORMAL mc=org.jboss.resource.adapter.jdbc.xa.XAManagedConnection@e3a17 handles=0 lastUse=1237991661503 permit=true trackByTx=true mcp=org.jboss.resource.connectionmanager.JBossManagedConnectionPool$OnePool@1165281 context=org.jboss.resource.connectionmanager.InternalManagedConnectionPool@82b79d xaResource=org.jboss.resource.adapter.jdbc.xa.XAManagedConnection@e3a17 txSync=null] | oracle.jdbc.xa.OracleXAException | at ?????? and 4- If is stop my DB at 20 sec with JBoss AS always alive and i restart it at 50 seconds, it's not OK, i have the exception. I restart JBoss AS and the transition is taken. So my question is : What are all these exceptions? Could somebody help me? I would like to have my timer working when my DB is relaunched without restart my JBoss AS. Thx. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4220942#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...