LockServiceTest: deadlock ------------------------- Key: JGRP-1761 URL: https://issues.jboss.org/browse/JGRP-1761 Project: JGroups Issue Type: Bug Reporter: Bela Ban Assignee: Bela Ban Fix For: 3.5 {noformat} Found one Java-level deadlock: ============================= "Thread-157": waiting to lock monitor 0x00007fc2d0002a98 (object 0x00000000ceed9348, a org.jgroups.protocols.Locking$ClientLockTable), which is held by "pool-2-thread-10" "pool-2-thread-10": waiting to lock monitor 0x00007fc2d0002b48 (object 0x00000000cf48bc30, a org.jgroups.protocols.Locking$ClientLock), which is held by "Thread-157" Java stack information for the threads listed above: =================================================== "Thread-157": at org.jgroups.protocols.Locking$ClientLockTable.removeClientLock(Locking.java:1030) - waiting to lock <0x00000000ceed9348> (a org.jgroups.protocols.Locking$ClientLockTable) at org.jgroups.protocols.Locking$ClientLock._unlock(Locking.java:947) - locked <0x00000000cf48bc30> (a org.jgroups.protocols.Locking$ClientLock) at org.jgroups.protocols.Locking$ClientLock.unlock(Locking.java:878) - locked <0x00000000cf48bc30> (a org.jgroups.protocols.Locking$ClientLock) at org.jgroups.protocols.Locking.down(Locking.java:160) at org.jgroups.stack.ProtocolStack.down(ProtocolStack.java:1034) at org.jgroups.JChannel.down(JChannel.java:765) at org.jgroups.blocks.locking.LockService$LockImpl.unlock(LockService.java:161) at org.jgroups.blocks.LockServiceTest.unlock(LockServiceTest.java:486) at org.jgroups.blocks.LockServiceTest$AbstractAwaiter.run(LockServiceTest.java:366) at java.lang.Thread.run(Thread.java:724) "pool-2-thread-10": at org.jgroups.protocols.Locking$ClientLock.unlock(Locking.java:878) - waiting to lock <0x00000000cf48bc30> (a org.jgroups.protocols.Locking$ClientLock) at org.jgroups.protocols.Locking$ClientLockTable.unlockAll(Locking.java:1046) - locked <0x00000000ceed9348> (a org.jgroups.protocols.Locking$ClientLockTable) at org.jgroups.protocols.Locking.unlockAll(Locking.java:282) at org.jgroups.protocols.Locking.down(Locking.java:164) at org.jgroups.stack.ProtocolStack.down(ProtocolStack.java:1034) at org.jgroups.JChannel.down(JChannel.java:765) at org.jgroups.blocks.locking.LockService.unlockAll(LockService.java:65) at org.jgroups.blocks.LockServiceTest.unlockAll(LockServiceTest.java:57) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84) at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:564) at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:213) at org.testng.internal.Invoker.invokeMethod(Invoker.java:653) at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901) at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231) at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127) at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111) 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:724) Found 1 deadlock. {noformat}