Deadlock in JBOSS Transaction Reaper ------------------------------------ Key: JBTM-1951 URL: https://issues.jboss.org/browse/JBTM-1951 Project: JBoss Transaction Manager Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 4.16.2 Reporter: Peter Klauser Assignee: Tom Jenkinson Found one Java-level deadlock: ============================= "Timer-93": waiting to lock monitor 0x00007f8fac190cf8 (object 0x00000000d6d50830, 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 0x00000000d6861408, (a java.util.concurrent.locks.ReentrantLock$FairSync), which is held by "Timer-93" Java stack information for the threads listed above: =================================================== "Timer-93": at com.arjuna.ats.arjuna.coordinator.BasicAction.Abort(BasicAction.java:1573) - waiting to lock <0x00000000d6d50830> (a com.arjuna.ats.internal.jta.transaction.arjunacore.AtomicAction) at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.cancel(TwoPhaseCoordinator.java:118) at com.arjuna.ats.arjuna.AtomicAction.abort(AtomicAction.java:188) at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.rollbackAndDisassociate(TransactionImple.java:1247) at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.rollback(BaseTransaction.java:134) at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.rollback(BaseTransactionManagerDelegate.java:114) at org.jboss.as.ejb3.inflow.MessageEndpointInvocationHandler.afterDelivery(MessageEndpointInvocationHandler.java:70) at sun.reflect.GeneratedMethodAccessor1756.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.jboss.as.ejb3.inflow.AbstractInvocationHandler.handle(AbstractInvocationHandler.java:60) at org.jboss.as.ejb3.inflow.MessageEndpointInvocationHandler.doInvoke(MessageEndpointInvocationHandler.java:136) at org.jboss.as.ejb3.inflow.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:73) at com.sun.proxy.$Proxy852.afterDelivery(Unknown Source) at sunrise.ra.aq.inbound.AqServerSession.run(AqServerSession.java:141) at java.util.TimerThread.mainLoop(Unknown Source) at java.util.TimerThread.run(Unknown Source) "Transaction Reaper Worker 0": at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x00000000d6861408> (a java.util.concurrent.locks.ReentrantLock$FairSync) at java.util.concurrent.locks.LockSupport.park(Unknown Source) at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(Unknown Source) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(Unknown Source) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(Unknown Source) at java.util.concurrent.locks.ReentrantLock$FairSync.lock(Unknown Source) at java.util.concurrent.locks.ReentrantLock.lock(Unknown Source) 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 <0x00000000d6d50830> (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) Found 1 deadlock.