[jboss-jira] [JBoss JIRA] (WFLY-5568) Concurrent access timeout -- could not obtain lock within 5000 MILLISECONDS

Concurrent access timeout -- could not obtain lock within 5000 MILLISECONDS ---------------------------------------------------------------------------- Key: WFLY-5568 URL: https://issues.jboss.org/browse/WFLY-5568 Project: WildFly Issue Type: Bug Components: EJB Affects Versions: 10.0.0.CR3 Reporter: Ladislav Thon This problem happens in a seemingly innocent scenario: standalone EJB client invoking method on a stateful bean in the first "forwarding" cluster (2 nodes), this bean just forwards the call to a stateful bean in the second "target" cluster (2 nodes), and then back again. Invocations are serial; the client won't invoke a method on a bean until it got a response to previous invocation. During the test, one of the target servers is shut down, which is when the problem starts to appear. This is the exception we're seeing on the standalone client: {code} 2015/10/20 19:28:54:958 EDT [ERROR][Runner - 13] HOST perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Error getting response. <javax.ejb.EJBTransactionRolledbackException: WFLYEJB0228: EJB 3.1 FR 4.3.14.1 concurrent access timeout on RemoteStatefulSBImpl - could not obtain lock within 5000 MILLISECONDS> javax.ejb.EJBTransactionRolledbackException: WFLYEJB0228: EJB 3.1 FR 4.3.14.1 concurrent access timeout on RemoteStatefulSBImpl - could not obtain lock within 5000 MILLISECONDS at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleInCallerTx(CMTTxInterceptor.java:159) at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInCallerTx(CMTTxInterceptor.java:256) at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:329) at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:239) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.remote.EJBRemoteTransactionPropagatingInterceptor.processInvocation(EJBRemoteTransactionPropagatingInterceptor.java:79) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.invocationmetrics.WaitTimeInterceptor.processInvocation(WaitTimeInterceptor.java:43) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.security.SecurityContextInterceptor.processInvocation(SecurityContextInterceptor.java:100) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.deployment.processors.EjbSuspendInterceptor.processInvocation(EjbSuspendInterceptor.java:53) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:66) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:54) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.ContextClassLoaderInterceptor.processInvocation(ContextClassLoaderInterceptor.java:64) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:356) at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:636) at org.jboss.invocation.AccessCheckingInterceptor.processInvocation(AccessCheckingInterceptor.java:61) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:356) at org.jboss.invocation.PrivilegedWithCombinerInterceptor.processInvocation(PrivilegedWithCombinerInterceptor.java:80) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:195) at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.invokeMethod(MethodInvocationMessageHandler.java:331) at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.access$100(MethodInvocationMessageHandler.java:69) at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler$1.run(MethodInvocationMessageHandler.java:202) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) at org.jboss.threads.JBossThread.run(JBossThread.java:320) at ...asynchronous invocation...(Unknown Source) at org.jboss.ejb.client.remoting.InvocationExceptionResponseHandler$MethodInvocationExceptionResultProducer.getResult(InvocationExceptionResponseHandler.java:96) at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:276) at org.jboss.ejb.client.EJBObjectInterceptor.handleInvocationResult(EJBObjectInterceptor.java:64) at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:290) at org.jboss.ejb.client.EJBHomeInterceptor.handleInvocationResult(EJBHomeInterceptor.java:88) at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:290) at org.jboss.ejb.client.TransactionInterceptor.handleInvocationResult(TransactionInterceptor.java:46) at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:290) at org.jboss.ejb.client.ReceiverInterceptor.handleInvocationResult(ReceiverInterceptor.java:129) at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:265) at org.jboss.ejb.client.EJBClientInvocationContext.awaitResponse(EJBClientInvocationContext.java:453) at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:204) at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:183) at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:146) at com.sun.proxy.$Proxy70.getSerialAndIncrement(Unknown Source) at org.jboss.test.clusterbench.ejb.stateful.AbstractForwardingStatefulSBImpl.getSerialAndIncrement(AbstractForwardingStatefulSBImpl.java:33) at sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.jboss.as.ee.component.ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptor.java:52) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:437) at org.jboss.as.weld.ejb.Jsr299BindingsInterceptor.doMethodInterception(Jsr299BindingsInterceptor.java:82) at org.jboss.as.weld.ejb.Jsr299BindingsInterceptor.processInvocation(Jsr299BindingsInterceptor.java:93) at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.invocationmetrics.ExecutionTimeInterceptor.processInvocation(ExecutionTimeInterceptor.java:43) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.jpa.interceptor.SBInvocationInterceptor.processInvocation(SBInvocationInterceptor.java:47) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.jpa.interceptor.SFSBInvocationInterceptor.processInvocation(SFSBInvocationInterceptor.java:57) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.stateful.StatefulSessionSynchronizationInterceptor.processInvocation(StatefulSessionSynchronizationInterceptor.java:125) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:437) at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:73) at org.jboss.as.weld.ejb.EjbRequestScopeActivationInterceptor.processInvocation(EjbRequestScopeActivationInterceptor.java:83) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ee.concurrent.ConcurrentContextInterceptor.processInvocation(ConcurrentContextInterceptor.java:45) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:52) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.stateful.StatefulComponentInstanceInterceptor.processInvocation(StatefulComponentInstanceInterceptor.java:65) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:275) at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:327) at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:239) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.remote.EJBRemoteTransactionPropagatingInterceptor.processInvocation(EJBRemoteTransactionPropagatingInterceptor.java:79) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.invocationmetrics.WaitTimeInterceptor.processInvocation(WaitTimeInterceptor.java:43) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.security.SecurityContextInterceptor.processInvocation(SecurityContextInterceptor.java:100) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.deployment.processors.EjbSuspendInterceptor.processInvocation(EjbSuspendInterceptor.java:53) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:66) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:54) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.ContextClassLoaderInterceptor.processInvocation(ContextClassLoaderInterceptor.java:64) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:356) at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:636) at org.jboss.invocation.AccessCheckingInterceptor.processInvocation(AccessCheckingInterceptor.java:61) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:356) at org.jboss.invocation.PrivilegedWithCombinerInterceptor.processInvocation(PrivilegedWithCombinerInterceptor.java:80) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:195) at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.invokeMethod(MethodInvocationMessageHandler.java:331) at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.access$100(MethodInvocationMessageHandler.java:69) at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler$1.run(MethodInvocationMessageHandler.java:202) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) at org.jboss.threads.JBossThread.run(JBossThread.java:320) at ...asynchronous invocation...(Unknown Source) at org.jboss.ejb.client.remoting.InvocationExceptionResponseHandler$MethodInvocationExceptionResultProducer.getResult(InvocationExceptionResponseHandler.java:96) at org.jboss.ejb.client.EJBClientInvocationContext$1.run(EJBClientInvocationContext.java:282) at java.security.AccessController.doPrivileged(Native Method) at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:279) at org.jboss.ejb.client.EJBObjectInterceptor.handleInvocationResult(EJBObjectInterceptor.java:64) at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:290) at org.jboss.ejb.client.EJBHomeInterceptor.handleInvocationResult(EJBHomeInterceptor.java:88) at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:290) at org.jboss.ejb.client.TransactionInterceptor.handleInvocationResult(TransactionInterceptor.java:46) at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:290) at org.jboss.ejb.client.ReceiverInterceptor.handleInvocationResult(ReceiverInterceptor.java:129) at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:265) at org.jboss.ejb.client.EJBClientInvocationContext.awaitResponse(EJBClientInvocationContext.java:453) at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:204) at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:183) at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:146) at com.sun.proxy.$Proxy2.getSerialAndIncrement(Unknown Source) at org.jboss.smartfrog.clustering.ejb3.StatefulSBProcessorFactoryImpl$EJB3RequestProcessor.processRequest(StatefulSBProcessorFactoryImpl.java:83) at org.jboss.smartfrog.loaddriver.CompoundRequestProcessorFactoryImpl$CompoundRequestProcessor.processRequest(CompoundRequestProcessorFactoryImpl.java:52) at org.jboss.smartfrog.loaddriver.Runner.run(Runner.java:103) at java.lang.Thread.run(Thread.java:745) Caused by: javax.ejb.ConcurrentAccessTimeoutException: WFLYEJB0228: EJB 3.1 FR 4.3.14.1 concurrent access timeout on RemoteStatefulSBImpl - could not obtain lock within 5000 MILLISECONDS at org.jboss.as.ejb3.component.stateful.StatefulSessionSynchronizationInterceptor.processInvocation(StatefulSessionSynchronizationInterceptor.java:86) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:437) at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:73) at org.jboss.as.weld.ejb.EjbRequestScopeActivationInterceptor.processInvocation(EjbRequestScopeActivationInterceptor.java:83) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ee.concurrent.ConcurrentContextInterceptor.processInvocation(ConcurrentContextInterceptor.java:45) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:52) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.stateful.StatefulComponentInstanceInterceptor.processInvocation(StatefulComponentInstanceInterceptor.java:65) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInCallerTx(CMTTxInterceptor.java:254) at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:329) at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:239) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.remote.EJBRemoteTransactionPropagatingInterceptor.processInvocation(EJBRemoteTransactionPropagatingInterceptor.java:79) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.invocationmetrics.WaitTimeInterceptor.processInvocation(WaitTimeInterceptor.java:43) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.security.SecurityContextInterceptor.processInvocation(SecurityContextInterceptor.java:100) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.deployment.processors.EjbSuspendInterceptor.processInvocation(EjbSuspendInterceptor.java:53) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:66) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:54) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.ContextClassLoaderInterceptor.processInvocation(ContextClassLoaderInterceptor.java:64) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:356) at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:636) at org.jboss.invocation.AccessCheckingInterceptor.processInvocation(AccessCheckingInterceptor.java:61) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:356) at org.jboss.invocation.PrivilegedWithCombinerInterceptor.processInvocation(PrivilegedWithCombinerInterceptor.java:80) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:195) at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.invokeMethod(MethodInvocationMessageHandler.java:331) at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.access$100(MethodInvocationMessageHandler.java:69) at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler$1.run(MethodInvocationMessageHandler.java:202) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) at org.jboss.threads.JBossThread.run(JBossThread.java:320) {code} This was also reported before: https://bugzilla.redhat.com/show_bug.cgi?id=990102