Potential deadlock in vm transport setListener when sender is blocked pending
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Key: AMQ-3684
URL: https://issues.apache.org/jira/browse/AMQ-3684
Project: ActiveMQ
Issue Type: Bug
Components: Transport
Affects Versions: 5.5.1
Reporter: Gary Tully
Assignee: Gary Tully
Fix For: 5.6.0
Noticed an intermittent dead lock in test:
{code}
"ActiveMQ Task-1" daemon prio=5 tid=101953000 nid=0x10abf3000 in Object.wait()
[10abf2000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <7ddcdb9a0> (a java.lang.Object)
at java.lang.Object.wait(Object.java:485)
at org.apache.activemq.thread.Valve.turnOff(Valve.java:71)
- locked <7ddcdb9a0> (a java.lang.Object)
at
org.apache.activemq.transport.vm.VMTransport.setTransportListener(VMTransport.java:230)
at
org.apache.activemq.transport.TransportFilter.setTransportListener(TransportFilter.java:42)
at
org.apache.activemq.transport.TransportFilter.setTransportListener(TransportFilter.java:42)
at
org.apache.activemq.broker.TransportConnection.<init>(TransportConnection.java:140)
at
org.apache.activemq.broker.TransportConnector.createConnection(TransportConnector.java:302)
at
org.apache.activemq.broker.TransportConnector$1$1.run(TransportConnector.java:218)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)
"RMI RenewClean-[192.168.1.9:57412]" daemon prio=5 tid=10193d800
nid=0x10a7e7000 in Object.wait() [10a7e6000]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <7dd894fe0> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
- locked <7dd894fe0> (a java.lang.ref.ReferenceQueue$Lock)
at
sun.rmi.transport.DGCClient$EndpointEntry$RenewCleanThread.run(DGCClient.java:516)
at java.lang.Thread.run(Thread.java:680)
"main" prio=5 tid=101807000 nid=0x100501000 waiting on condition [1004fe000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <7ddcdbc98> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1987)
at
java.util.concurrent.LinkedBlockingQueue.put(LinkedBlockingQueue.java:306)
at
org.apache.activemq.transport.vm.VMTransport.oneway(VMTransport.java:100)
at
org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:68)
at
org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:60)
at
org.apache.activemq.broker.StubConnection.send(StubConnection.java:107)
at
org.apache.activemq.store.kahadb.KahaDBStoreRecoveryBrokerTest.testLargeQueuePersistentMessagesNotLostOnRestart(KahaDBStoreRecoveryBrokerTest.java:118)
...{code}
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