[ https://issues.jboss.org/browse/JBTM-3153?page=com.atlassian.jira.plugin.... ] Ondrej Chaloupka updated JBTM-3153: ----------------------------------- Description: There is a possible race condition at the test {{SipleIsolatedServers}} (https://github.com/jbosstm/narayana/blob/5.9.5.Final/ArjunaJTS/integratio...) where {{while loop}} can be infinite as the counter never gets expected number of {{2}}. This can happen in case of the recovery fails with some unexpected exception/error. For example the CI experienced {{java.lang.LinkageError}} on JDK11. (The exact reason for the linkage error is for further investigation. But the test should be fixed.) [1] {code} [RecMan1000] ProxyXAResource (1000:2000) XA_RECOVER [XAResource.TMSTARTRSCAN] Exception in thread "RecMan1000" java.lang.LinkageError: loader com.arjuna.ats.jta.distributed.server.IsolatableServersClassLoader @72503b19 (instance of com.arjuna.ats.jta.distributed.server.IsolatableServersClassLoader, child of 'app' jdk.internal.loader.ClassLoaders$AppClassLoader) attempted duplicate class definition for com.arjuna.ats.internal.jta.transaction.arjunacore.jca.SubordinationManager. at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:877) at com.arjuna.ats.jta.distributed.server.IsolatableServersClassLoader.loadClass(IsolatableServersClassLoader.java:125) at com.arjuna.ats.jta.distributed.server.IsolatableServersClassLoader.loadClass(IsolatableServersClassLoader.java:103) at com.arjuna.ats.jta.distributed.server.impl.RemoteServerImpl.recoverFor(RemoteServerImpl.java:111) at com.arjuna.ats.jta.distributed.server.impl.ProxyXAResource.recover(ProxyXAResource.java:174) at com.arjuna.ats.internal.jta.recovery.arjunacore.XARecoveryModule.xaRecoveryFirstPass(XARecoveryModule.java:634) at com.arjuna.ats.internal.jta.recovery.arjunacore.XARecoveryModule.periodicWorkFirstPass(XARecoveryModule.java:226) at com.arjuna.ats.internal.jta.recovery.arjunacore.XARecoveryModule.getNewXAResource(XARecoveryModule.java:329) at com.arjuna.ats.internal.jta.recovery.arjunacore.XARecoveryModule.getNewXAResource(XARecoveryModule.java:368) at com.arjuna.ats.internal.jta.resources.arjunacore.XAResourceRecord.getNewXAResource(XAResourceRecord.java:1254) at com.arjuna.ats.internal.jta.resources.arjunacore.XAResourceRecord.restore_state(XAResourceRecord.java:1005) at com.arjuna.ats.arjuna.coordinator.BasicAction.restore_state(BasicAction.java:1120) at com.arjuna.ats.internal.jta.transaction.arjunacore.subordinate.jca.SubordinateAtomicAction.restore_state(SubordinateAtomicAction.java:212) at com.arjuna.ats.arjuna.coordinator.BasicAction.activate(BasicAction.java:490) at com.arjuna.ats.arjuna.coordinator.BasicAction.activate(BasicAction.java:453) at com.arjuna.ats.internal.jta.transaction.arjunacore.subordinate.jca.SubordinateAtomicAction.<init>(SubordinateAtomicAction.java:75) at com.arjuna.ats.internal.jta.transaction.arjunacore.subordinate.jca.TransactionImple.<init>(TransactionImple.java:71) at com.arjuna.ats.internal.jta.transaction.arjunacore.jca.TransactionImporterImple.recoverTransaction(TransactionImporterImple.java:124) at com.arjuna.ats.internal.jta.transaction.arjunacore.jca.TransactionImporterImple.recoverTransaction(TransactionImporterImple.java:52) at com.arjuna.ats.internal.jta.recovery.arjunacore.SubordinateAtomicActionRecoveryModule.periodicWorkFirstPass(SubordinateAtomicActionRecoveryModule.java:74) at com.arjuna.ats.internal.arjuna.recovery.PeriodicRecovery.doWorkInternal(PeriodicRecovery.java:770) at com.arjuna.ats.internal.arjuna.recovery.PeriodicRecovery.doWork(PeriodicRecovery.java:493) at com.arjuna.ats.internal.arjuna.recovery.RecoveryManagerImple.scan(RecoveryManagerImple.java:138) at com.arjuna.ats.arjuna.recovery.RecoveryManager.scan(RecoveryManager.java:161) at com.arjuna.ats.jta.distributed.server.impl.ServerImpl.doRecoveryManagerScan(ServerImpl.java:197) at com.arjuna.ats.jta.distributed.SimpleIsolatedServers$4.run(SimpleIsolatedServers.java:299) at java.base/java.lang.Thread.run(Thread.java:834) {code} The stuck tread waits at {code} "main" #1 prio=5 os_prio=0 cpu=4031.25ms elapsed=61387.77s tid=0x000000422f702800 nid=0x25fc in Object.wait() [0x000000422eeae000] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(java.base(a)11.0.2/Native Method) - waiting on <no object reference available> at com.arjuna.ats.jta.distributed.SimpleIsolatedServers.testSimultaneousRecover(SimpleIsolatedServers.java:307) - waiting to re-lock in wait() <0x0000000766d00038> (a com.arjuna.ats.jta.distributed.SimpleIsolatedServers$CompletionCountLock) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(java.base(a)11.0.2/Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(java.base@11.0.2/NativeMethodAccessorImpl.java:62) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(java.base@11.0.2/DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(java.base@11.0.2/Method.java:566) 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.InvokeMethod.evaluate(InvokeMethod.java:17) at org.jboss.byteman.contrib.bmunit.BMUnitRunner$7.evaluate(BMUnitRunner.java:294) at org.jboss.byteman.contrib.bmunit.BMUnitRunner$6.evaluate(BMUnitRunner.java:263) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) 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.jboss.byteman.contrib.bmunit.BMUnitRunner$1.evaluate(BMUnitRunner.java:97) at org.junit.runners.ParentRunner.run(ParentRunner.java:309) at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365) at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:272) at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:236) at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159) at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:386) at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:323) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:143) {code} was: There is a possible race condition at the test {{SipleIsolatedServers}} (https://github.com/jbosstm/narayana/blob/5.9.5.Final/ArjunaJTS/integratio...) where {{while loop}} can be infinite as the counter never gets expected number of {{2}}. This can happen in case of the recovery fails with some unexpected exception/error. For example the CI experienced {{java.lang.LinkageError}} on JDK11. (The exact reason for the linkage error is for further investigation. But the test should be fixed.) [1] {code} [RecMan1000] ProxyXAResource (1000:2000) XA_RECOVER [XAResource.TMSTARTRSCAN] Exception in thread "RecMan1000" java.lang.LinkageError: loader com.arjuna.ats.jta.distributed.server.IsolatableServersClassLoader @72503b19 (instance of com.arjuna.ats.jta.distributed.server.IsolatableServersClassLoader, child of 'app' jdk.internal.loader.ClassLoaders$AppClassLoader) attempted duplicate class definition for com.arjuna.ats.internal.jta.transaction.arjunacore.jca.SubordinationManager. at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:877) at com.arjuna.ats.jta.distributed.server.IsolatableServersClassLoader.loadClass(IsolatableServersClassLoader.java:125) at com.arjuna.ats.jta.distributed.server.IsolatableServersClassLoader.loadClass(IsolatableServersClassLoader.java:103) at com.arjuna.ats.jta.distributed.server.impl.RemoteServerImpl.recoverFor(RemoteServerImpl.java:111) at com.arjuna.ats.jta.distributed.server.impl.ProxyXAResource.recover(ProxyXAResource.java:174) at com.arjuna.ats.internal.jta.recovery.arjunacore.XARecoveryModule.xaRecoveryFirstPass(XARecoveryModule.java:634) at com.arjuna.ats.internal.jta.recovery.arjunacore.XARecoveryModule.periodicWorkFirstPass(XARecoveryModule.java:226) at com.arjuna.ats.internal.jta.recovery.arjunacore.XARecoveryModule.getNewXAResource(XARecoveryModule.java:329) at com.arjuna.ats.internal.jta.recovery.arjunacore.XARecoveryModule.getNewXAResource(XARecoveryModule.java:368) at com.arjuna.ats.internal.jta.resources.arjunacore.XAResourceRecord.getNewXAResource(XAResourceRecord.java:1254) at com.arjuna.ats.internal.jta.resources.arjunacore.XAResourceRecord.restore_state(XAResourceRecord.java:1005) at com.arjuna.ats.arjuna.coordinator.BasicAction.restore_state(BasicAction.java:1120) at com.arjuna.ats.internal.jta.transaction.arjunacore.subordinate.jca.SubordinateAtomicAction.restore_state(SubordinateAtomicAction.java:212) at com.arjuna.ats.arjuna.coordinator.BasicAction.activate(BasicAction.java:490) at com.arjuna.ats.arjuna.coordinator.BasicAction.activate(BasicAction.java:453) at com.arjuna.ats.internal.jta.transaction.arjunacore.subordinate.jca.SubordinateAtomicAction.<init>(SubordinateAtomicAction.java:75) at com.arjuna.ats.internal.jta.transaction.arjunacore.subordinate.jca.TransactionImple.<init>(TransactionImple.java:71) at com.arjuna.ats.internal.jta.transaction.arjunacore.jca.TransactionImporterImple.recoverTransaction(TransactionImporterImple.java:124) at com.arjuna.ats.internal.jta.transaction.arjunacore.jca.TransactionImporterImple.recoverTransaction(TransactionImporterImple.java:52) at com.arjuna.ats.internal.jta.recovery.arjunacore.SubordinateAtomicActionRecoveryModule.periodicWorkFirstPass(SubordinateAtomicActionRecoveryModule.java:74) at com.arjuna.ats.internal.arjuna.recovery.PeriodicRecovery.doWorkInternal(PeriodicRecovery.java:770) at com.arjuna.ats.internal.arjuna.recovery.PeriodicRecovery.doWork(PeriodicRecovery.java:493) at com.arjuna.ats.internal.arjuna.recovery.RecoveryManagerImple.scan(RecoveryManagerImple.java:138) at com.arjuna.ats.arjuna.recovery.RecoveryManager.scan(RecoveryManager.java:161) at com.arjuna.ats.jta.distributed.server.impl.ServerImpl.doRecoveryManagerScan(ServerImpl.java:197) at com.arjuna.ats.jta.distributed.SimpleIsolatedServers$4.run(SimpleIsolatedServers.java:299) at java.base/java.lang.Thread.run(Thread.java:834) {code} -- This message was sent by Atlassian Jira (v7.12.1#712002)