JDBC ConnectionManager has deadlock potential --------------------------------------------- Key: JBTM-3194 URL: https://issues.jboss.org/browse/JBTM-3194 Project: JBoss Transaction Manager Issue Type: Bug Components: Transactional Driver Reporter: Thomas Jenkinson Assignee: Thomas Jenkinson Priority: Major Fix For: 5.next {code} "Thread-461" #484 prio=5 os_prio=0 cpu=1.84ms elapsed=131863.84s tid=0x00007fc2f0e0e000 nid=0x420a waiting for monitor entry [0x00007fbf99de0000] java.lang.Thread.State: BLOCKED (on object monitor) at com.arjuna.ats.internal.jdbc.ConnectionManager.release(ConnectionManager.java) - waiting to lock <0x0000000083000ca0> (a java.lang.Class for com.arjuna.ats.internal.jdbc.ConnectionManager) at com.arjuna.ats.internal.jdbc.ConnectionImple.closeImpl(ConnectionImple.java:360) at com.arjuna.ats.internal.jdbc.ConnectionImple.close(ConnectionImple.java:323) at com.hp.mwtests.ts.jdbc.basic.PoolingTest$1.afterCompletion(PoolingTest.java:129) at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.afterCompletion(SynchronizationImple.java:96) at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.afterCompletion(TwoPhaseCoordinator.java:545) - locked <0x000000008355f318> (a java.lang.Object) at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:101) at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:162) at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1287) at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:126) at com.hp.mwtests.ts.jdbc.basic.PoolingTest.lambda$test$0(PoolingTest.java:135) at com.hp.mwtests.ts.jdbc.basic.PoolingTest$$Lambda$70/0x0000000100147040.run(Unknown Source) at java.lang.Thread.run(java.base@11/Thread.java:834) "Thread-462" #485 prio=5 os_prio=0 cpu=3.72ms elapsed=131863.84s tid=0x00007fc2f0e10800 nid=0x420b in Object.wait() [0x00007fbf99bde000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(java.base@11/Native Method) - waiting on <0x00000000831d5830> (a java.util.HashSet) at java.lang.Object.wait(java.base@11/Object.java:328) at com.arjuna.ats.internal.jdbc.ConnectionManager.create(ConnectionManager.java:134) - waiting to re-lock in wait() <0x00000000831d5830> (a java.util.HashSet) - locked <0x0000000083000ca0> (a java.lang.Class for com.arjuna.ats.internal.jdbc.ConnectionManager) at com.arjuna.ats.jdbc.TransactionalDriver.connect(TransactionalDriver.java:89) at java.sql.DriverManager.getConnection(java.sql@11/DriverManager.java:677) at java.sql.DriverManager.getConnection(java.sql@11/DriverManager.java:189) at com.hp.mwtests.ts.jdbc.basic.PoolingTest$1.beforeCompletion(PoolingTest.java:119) at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:76) at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:360) - locked <0x00000000835638e0> (a java.lang.Object) at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:91) at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:162) at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1287) at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:126) at com.hp.mwtests.ts.jdbc.basic.PoolingTest.lambda$test$0(PoolingTest.java:135) at com.hp.mwtests.ts.jdbc.basic.PoolingTest$$Lambda$70/0x0000000100147040.run(Unknown Source) at java.lang.Thread.run(java.base@11/Thread.java:834) {code}