MQJMS2012: XACLOSE failed

Hi,
I am getting this exception in my application. Not sure why it is coming. The IBM site suggestes installing a fix.

I have Websphere 6.0.2.3, Oracle10g & MQ. The application reads a msg & puts in the DB as CLOB & sometimes it rollsback for no apparent reason.

here's the log of the exception:

[6/6/08 10:05:46:786 CDT] 00000054 XATransaction E J2CA0027E: An exception occurred while invoking end on an XA Resource Adapter from dataSource JMS$TRBMDBConnectionFactory$JMSManagedConnection@29867923, within transaction ID {XidImpl: formatId(57415344), gtrid_length(36), bqual_length(54), data(0000011a5e0b567f0000000100033ece746b814e1bc8721288f9e1dcaa21ea2d635a58990000011a5e0b567f0000000100033ece746b814e1bc8721288f9e1dcaa21ea2d635a5899000000010000000000000000000000000001)}: javax.transaction.xa.XAException: XA operation failed, see errorCode
at com.ibm.mq.MQXAResource.end(MQXAResource.java:528)
at com.ibm.ejs.jms.JMSManagedSession$JMSXAResource.end(JMSManagedSession.java:1641)
at com.ibm.ejs.j2c.XATransactionWrapper.end(XATransactionWrapper.java:525)
at com.ibm.ws.Transaction.JTA.JTAResourceBase.end(JTAResourceBase.java:232)
at com.ibm.ws.Transaction.JTA.RegisteredResources.distributeEnd(RegisteredResources.java:1176)
at com.ibm.ws.Transaction.JTA.TransactionImpl.distributeEnd(TransactionImpl.java:2291)
at com.ibm.ws.Transaction.JTA.TransactionImpl.prepareResources(TransactionImpl.java:1920)
at com.ibm.ws.Transaction.JTA.TransactionImpl.stage1CommitProcessing(TransactionImpl.java:1523)
at com.ibm.ws.Transaction.JTA.TransactionImpl.processCommit(TransactionImpl.java:1479)
at com.ibm.ws.Transaction.JTA.TransactionImpl.commit(TransactionImpl.java:1414)
at com.ibm.ws.Transaction.JTA.TranManagerImpl.commit(TranManagerImpl.java:236)
at com.ibm.ws.Transaction.JTA.TranManagerSet.commit(TranManagerSet.java:157)
at com.ibm.ejs.csi.TranStrategy.commit(TranStrategy.java:716)
at com.ibm.ejs.csi.TranStrategy.postInvoke(TranStrategy.java:167)
at com.ibm.ejs.csi.TransactionControlImpl.postInvoke(TransactionControlImpl.java:569)
at com.ibm.ejs.container.EJSContainer.postInvoke(EJSContainer.java:3801)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:102)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:127)
at com.ibm.ejs.jms.listener.ServerSession.run(ServerSession.java:478)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1455)
.
[6/6/08 10:05:47:846 CDT] 00000054 MCWrapper E J2CA0081E: Method destroy failed while trying to execute method destroy on ManagedConnection com.ibm.ejs.jms.JMSManagedQueueSession@25eb8b
physical session = com.ibm.mq.jms.MQXAQueueSession@128beb6
session type = XA_SESSION
enlisted = true
open session handles = []
managed session factory = com.ibm.ejs.jms.JMSManagedQueueSessionFactory@190ea6a from resource No longer available. Caught exception: javax.resource.spi.ResourceAdapterInternalException: Failed to close session
at com.ibm.ejs.jms.JMSCMUtils.mapToResourceException(JMSCMUtils.java:170)
at com.ibm.ejs.jms.JMSManagedSession.destroy(JMSManagedSession.java:555)
at com.ibm.ejs.j2c.MCWrapper.destroy(MCWrapper.java:1544)
at com.ibm.ejs.j2c.poolmanager.FreePool.cleanupAndDestroyMCWrapper(FreePool.java:641)
at com.ibm.ejs.j2c.poolmanager.FreePool.returnToFreePool(FreePool.java:436)
at com.ibm.ejs.j2c.poolmanager.PoolManager.release(PoolManager.java:1511)
at com.ibm.ejs.j2c.MCWrapper.releaseToPoolManager(MCWrapper.java:1951)
at com.ibm.ejs.j2c.XATransactionWrapper.afterCompletion(XATransactionWrapper.java:370)
at com.ibm.ws.Transaction.JTA.RegisteredSyncs.distributeAfter(RegisteredSyncs.java:370)
at com.ibm.ws.Transaction.JTA.TransactionImpl.distributeAfter(TransactionImpl.java:3652)
at com.ibm.ws.Transaction.JTA.TransactionImpl.postCompletion(TransactionImpl.java:3631)
at com.ibm.ws.Transaction.JTA.TransactionImpl.internalRollback(TransactionImpl.java:2619)
at com.ibm.ws.Transaction.JTA.TransactionImpl.stage2CommitProcessing(TransactionImpl.java:1620)
at com.ibm.ws.Transaction.JTA.TransactionImpl.processCommit(TransactionImpl.java:1483)
at com.ibm.ws.Transaction.JTA.TransactionImpl.commit(TransactionImpl.java:1414)
at com.ibm.ws.Transaction.JTA.TranManagerImpl.commit(TranManagerImpl.java:236)
at com.ibm.ws.Transaction.JTA.TranManagerSet.commit(TranManagerSet.java:157)
at com.ibm.ejs.csi.TranStrategy.commit(TranStrategy.java:716)
at com.ibm.ejs.csi.TranStrategy.postInvoke(TranStrategy.java:167)
at com.ibm.ejs.csi.TransactionControlImpl.postInvoke(TransactionControlImpl.java:569)
at com.ibm.ejs.container.EJSContainer.postInvoke(EJSContainer.java:3801)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:102)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:127)
at com.ibm.ejs.jms.listener.ServerSession.run(ServerSession.java:478)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1455)
Caused by: javax.jms.JMSException: MQJMS2012: XACLOSE failed
at com.ibm.mq.jms.services.ConfigEnvironment.newException(ConfigEnvironment.java:567)
at com.ibm.mq.jms.MQXASession.close(MQXASession.java:199)
at com.ibm.ejs.jms.JMSManagedSession.destroy(JMSManagedSession.java:550)
... 23 more
---- Begin backtrace for Nested Throwables
javax.transaction.xa.XAException: MQJI002: Not connected to a queue manager.
at com.ibm.mq.MQXAResource.createXAException(MQXAResource.java:794)
at com.ibm.mq.MQSESSIONClient.XACLOSE(MQSESSIONClient.java:549)
at com.ibm.mq.MQXAResource.close(MQXAResource.java:165)
at com.ibm.mq.jms.MQXASession.close(MQXASession.java:196)
at com.ibm.ejs.jms.JMSManagedSession.destroy(JMSManagedSession.java:550)
at com.ibm.ejs.j2c.MCWrapper.destroy(MCWrapper.java:1544)
at com.ibm.ejs.j2c.poolmanager.FreePool.cleanupAndDestroyMCWrapper(FreePool.java:641)
at com.ibm.ejs.j2c.poolmanager.FreePool.returnToFreePool(FreePool.java:436)
at com.ibm.ejs.j2c.poolmanager.PoolManager.release(PoolManager.java:1511)
at com.ibm.ejs.j2c.MCWrapper.releaseToPoolManager(MCWrapper.java:1951)
at com.ibm.ejs.j2c.XATransactionWrapper.afterCompletion(XATransactionWrapper.java:370)
at com.ibm.ws.Transaction.JTA.RegisteredSyncs.distributeAfter(RegisteredSyncs.java:370)
at com.ibm.ws.Transaction.JTA.TransactionImpl.distributeAfter(TransactionImpl.java:3652)
at com.ibm.ws.Transaction.JTA.TransactionImpl.postCompletion(TransactionImpl.java:3631)
at com.ibm.ws.Transaction.JTA.TransactionImpl.internalRollback(TransactionImpl.java:2619)
at com.ibm.ws.Transaction.JTA.TransactionImpl.stage2CommitProcessing(TransactionImpl.java:1620)
at com.ibm.ws.Transaction.JTA.TransactionImpl.processCommit(TransactionImpl.java:1483)
at com.ibm.ws.Transaction.JTA.TransactionImpl.commit(TransactionImpl.java:1414)
at com.ibm.ws.Transaction.JTA.TranManagerImpl.commit(TranManagerImpl.java:236)
at com.ibm.ws.Transaction.JTA.TranManagerSet.commit(TranManagerSet.java:157)
at com.ibm.ejs.csi.TranStrategy.commit(TranStrategy.java:716)
at com.ibm.ejs.csi.TranStrategy.postInvoke(TranStrategy.java:167)
at com.ibm.ejs.csi.TransactionControlImpl.postInvoke(TransactionControlImpl.java:569)
at com.ibm.ejs.container.EJSContainer.postInvoke(EJSContainer.java:3801)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:102)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:127)
at com.ibm.ejs.jms.listener.ServerSession.run(ServerSession.java:478)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1455)

[6/6/08 10:05:48:046 CDT] 00000054 ServerSession W WMSG0031E: Exception processing JMS Message for MDB TRBServiceMDB, JMSDestination jms/TRBServiceQueue : javax.ejb.TransactionRolledbackLocalException: ; nested exception is: com.ibm.websphere.csi.CSITransactionRolledbackException:
com.ibm.websphere.csi.CSITransactionRolledbackException:
at com.ibm.ejs.csi.TranStrategy.commit(TranStrategy.java:729)
at com.ibm.ejs.csi.TranStrategy.postInvoke(TranStrategy.java:167)
at com.ibm.ejs.csi.TransactionControlImpl.postInvoke(TransactionControlImpl.java:569)
at com.ibm.ejs.container.EJSContainer.postInvoke(EJSContainer.java:3801)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:102)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:127)
at com.ibm.ejs.jms.listener.ServerSession.run(ServerSession.java:478)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1455)
javax.ejb.TransactionRolledbackLocalException: ; nested exception is: com.ibm.websphere.csi.CSITransactionRolledbackException:
at com.ibm.ejs.csi.TranStrategy.commit(TranStrategy.java:729)
at com.ibm.ejs.csi.TranStrategy.postInvoke(TranStrategy.java:167)
at com.ibm.ejs.csi.TransactionControlImpl.postInvoke(TransactionControlImpl.java:569)
at com.ibm.ejs.container.EJSContainer.postInvoke(EJSContainer.java:3801)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:102)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:127)
at com.ibm.ejs.jms.listener.ServerSession.run(ServerSession.java:478)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1455)

[6/6/08 10:05:48:072 CDT] 00000054 ThreadMonitor W WSVR0606W: Thread "MessageListenerThreadPool : 1" (00000054) was previously reported to be hung but has completed. It was active for approximately 6169257 milliseconds. There is/are 0 thread(s) in total in the server that still may be hung.
[6/6/08 10:13:32:437 CDT] 0000005f LdapRegistryI A SECJ0419I: The user registry is cu