[ https://issues.jboss.org/browse/JBTM-1951?page=com.atlassian.jira.plugin.... ] Rico Neubauer commented on JBTM-1951: ------------------------------------- Experienced this also with JBoss 7.1.1 running jbossts 4.16.6. Involved threads are exactly the same, but posting it again, since my stacks include more line numbers: Found one Java-level deadlock: ============================= "Thread-503 (HornetQ-client-global-threads-325484596)": waiting to lock monitor 0x0000000066418878 (object 0x0000000786d861d0, a com.arjuna.ats.internal.jta.transaction.arjunacore.AtomicAction), which is held by "Transaction Reaper Worker 0" "Transaction Reaper Worker 0": waiting for ownable synchronizer 0x0000000785c9d658, (a java.util.concurrent.locks.ReentrantLock$FairSync), which is held by "Thread-503 (HornetQ-client-global-threads-325484596)" Java stack information for the threads listed above: =================================================== "Thread-503 (HornetQ-client-global-threads-325484596)": at com.arjuna.ats.arjuna.coordinator.BasicAction.Abort(BasicAction.java:1573) - waiting to lock <0x0000000786d861d0> (a com.arjuna.ats.internal.jta.transaction.arjunacore.AtomicAction) at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.cancel(TwoPhaseCoordinator.java:118) at com.arjuna.ats.arjuna.AtomicAction.abort(AtomicAction.java:188) at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1154) at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:117) at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75) at org.jboss.as.ejb3.inflow.MessageEndpointInvocationHandler.afterDelivery(MessageEndpointInvocationHandler.java:72) at sun.reflect.GeneratedMethodAccessor448.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.jboss.as.ejb3.inflow.AbstractInvocationHandler.handle(AbstractInvocationHandler.java:60) at org.jboss.as.ejb3.inflow.MessageEndpointInvocationHandler.doInvoke(MessageEndpointInvocationHandler.java:136) at org.jboss.as.ejb3.inflow.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:73) at com.sun.proxy.$Proxy84.afterDelivery(Unknown Source) at org.hornetq.ra.inflow.HornetQMessageHandler.onMessage(HornetQMessageHandler.java:287) at org.hornetq.core.client.impl.ClientConsumerImpl.callOnMessage(ClientConsumerImpl.java:983) at org.hornetq.core.client.impl.ClientConsumerImpl.access$400(ClientConsumerImpl.java:48) at org.hornetq.core.client.impl.ClientConsumerImpl$Runner.run(ClientConsumerImpl.java:1113) at org.hornetq.utils.OrderedExecutorFactory$OrderedExecutor$1.run(OrderedExecutorFactory.java:107) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) "Transaction Reaper Worker 0": at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x0000000785c9d658> (a java.util.concurrent.locks.ReentrantLock$FairSync) at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186) at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:867) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1197) at java.util.concurrent.locks.ReentrantLock$FairSync.lock(ReentrantLock.java:229) at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:290) at org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnection.lock(BaseWrapperManagedConnection.java:361) at org.jboss.jca.adapters.jdbc.xa.XAManagedConnection.end(XAManagedConnection.java:290) at org.jboss.jca.core.tx.jbossts.XAResourceWrapperImpl.end(XAResourceWrapperImpl.java:99) at com.arjuna.ats.internal.jta.resources.arjunacore.XAResourceRecord.topLevelAbort(XAResourceRecord.java:312) at com.arjuna.ats.arjuna.coordinator.BasicAction.doAbort(BasicAction.java:2874) at com.arjuna.ats.arjuna.coordinator.BasicAction.doAbort(BasicAction.java:2853) at com.arjuna.ats.arjuna.coordinator.BasicAction.Abort(BasicAction.java:1616) - locked <0x0000000786d861d0> (a com.arjuna.ats.internal.jta.transaction.arjunacore.AtomicAction) at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.cancel(TwoPhaseCoordinator.java:118) at com.arjuna.ats.arjuna.AtomicAction.cancel(AtomicAction.java:217) at com.arjuna.ats.arjuna.coordinator.TransactionReaper.doCancellations(TransactionReaper.java:370) at com.arjuna.ats.internal.arjuna.coordinator.ReaperWorkerThread.run(ReaperWorkerThread.java:78) -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira