Reported by RV-Predict (a dynamic race detector) when running the test suite: Data race on field org.apache.catalina.tribes.transport.nio.PooledParallelSender.connected: {{{ Concurrent write in thread T1 (locks held: {Monitor@77f324cd, Monitor@54110076, Monitor@77f324c6, Monitor@77f32527, Monitor@77f32529}) ----> at org.apache.catalina.tribes.transport.nio.PooledParallelSender.disconnect(PooledParallelSender.java:76) - locked Monitor@77f32529 at org.apache.catalina.tribes.transport.nio.PooledParallelSender.disconnect(PooledParallelSender.java:n/a) at org.apache.catalina.tribes.transport.ReplicationTransmitter.stop(ReplicationTransmitter.java:75) - locked Monitor@77f32527 at org.apache.catalina.tribes.transport.ReplicationTransmitter.stop(ReplicationTransmitter.java:n/a) at org.apache.catalina.tribes.group.ChannelCoordinator.internalStop(ChannelCoordinator.java:217) - locked Monitor@77f324c6 at org.apache.catalina.tribes.group.ChannelCoordinator.internalStop(ChannelCoordinator.java:n/a) at org.apache.catalina.tribes.group.ChannelCoordinator.stop(ChannelCoordinator.java:121) at org.apache.catalina.tribes.group.ChannelInterceptorBase.stop(ChannelInterceptorBase.java:171) at org.apache.catalina.tribes.group.ChannelInterceptorBase.stop(ChannelInterceptorBase.java:171) at org.apache.catalina.tribes.group.ChannelInterceptorBase.stop(ChannelInterceptorBase.java:171) at org.apache.catalina.tribes.group.interceptors.NonBlockingCoordinator.stop(NonBlockingCoordinator.java:467) - locked Monitor@54110076 at org.apache.catalina.tribes.group.interceptors.NonBlockingCoordinator.stop(NonBlockingCoordinator.java:463) at org.apache.catalina.tribes.group.ChannelInterceptorBase.stop(ChannelInterceptorBase.java:171) at org.apache.catalina.tribes.group.GroupChannel.stop(GroupChannel.java:444) - locked Monitor@77f324cd at org.apache.catalina.tribes.group.GroupChannel.stop(GroupChannel.java:n/a) at org.apache.catalina.tribes.group.interceptors.TestNonBlockingCoordinator.tearDown(TestNonBlockingCoordinator.java:127) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:33) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229) at org.junit.runners.ParentRunner.run(ParentRunner.java:309) at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:38) at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535) at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182) at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033) T1 is the main thread Concurrent read in thread T280 (locks held: {Monitor@23afd3e1}) ----> at org.apache.catalina.tribes.transport.nio.PooledParallelSender.sendMessage(PooledParallelSender.java:58) at org.apache.catalina.tribes.transport.ReplicationTransmitter.sendMessage(ReplicationTransmitter.java:54) at org.apache.catalina.tribes.group.ChannelCoordinator.sendMessage(ChannelCoordinator.java:82) at org.apache.catalina.tribes.group.ChannelInterceptorBase.sendMessage(ChannelInterceptorBase.java:76) at org.apache.catalina.tribes.group.ChannelInterceptorBase.sendMessage(ChannelInterceptorBase.java:76) at org.apache.catalina.tribes.group.interceptors.TcpFailureDetector.sendMessage(TcpFailureDetector.java:93) at org.apache.catalina.tribes.group.ChannelInterceptorBase.sendMessage(ChannelInterceptorBase.java:76) at org.apache.catalina.tribes.group.interceptors.NonBlockingCoordinator.sendElectionMsg(NonBlockingCoordinator.java:260) at org.apache.catalina.tribes.group.interceptors.NonBlockingCoordinator.sendElectionMsgToNextInline(NonBlockingCoordinator.java:270) at org.apache.catalina.tribes.group.interceptors.NonBlockingCoordinator.handleOtherToken(NonBlockingCoordinator.java:365) at org.apache.catalina.tribes.group.interceptors.NonBlockingCoordinator.handleToken(NonBlockingCoordinator.java:331) at org.apache.catalina.tribes.group.interceptors.NonBlockingCoordinator.processCoordMessage(NonBlockingCoordinator.java:322) at org.apache.catalina.tribes.group.interceptors.NonBlockingCoordinator.messageReceived(NonBlockingCoordinator.java:498) at org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:81) at org.apache.catalina.tribes.group.interceptors.TcpFailureDetector.messageReceived(TcpFailureDetector.java:117) at org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:81) at org.apache.catalina.tribes.group.interceptors.DomainFilterInterceptor.messageReceived(DomainFilterInterceptor.java:48) at org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:81) at org.apache.catalina.tribes.group.ChannelCoordinator.messageReceived(ChannelCoordinator.java:262) at org.apache.catalina.tribes.transport.ReceiverBase.messageDataReceived(ReceiverBase.java:242) at org.apache.catalina.tribes.transport.nio.NioReplicationTask.drainChannel(NioReplicationTask.java:211) at org.apache.catalina.tribes.transport.nio.NioReplicationTask.run(NioReplicationTask.java:102) - locked Monitor@23afd3e1 at org.apache.catalina.tribes.transport.nio.NioReplicationTask.run(NioReplicationTask.java:n/a) T280 is created by T177 at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:1010) }}}
Fixed in trunk and 8.0.x for 8.0.27 onwards.