With deadlock detection enabled, occasional null pointer exceptions are experienced when using the lock() API ------------------------------------------------------------------------------------------------------------- Key: ISPN-594 URL: https://jira.jboss.org/browse/ISPN-594 Project: Infinispan Issue Type: Bug Components: Locking and Concurrency Affects Versions: 4.1.0.CR2 Environment: Deadlock detection + Reporter: Manik Surtani Assignee: Manik Surtani Priority: Critical Fix For: 4.1.0.CR3 This has to do with the lock container. The stack trace is as follows: java.lang.NullPointerException at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:768) at org.infinispan.util.concurrent.locks.containers.OwnableReentrantPerEntryLockContainer.getLockFromMap(OwnableReentrantPerEntryLockContainer.java:38) at org.infinispan.util.concurrent.locks.containers.OwnableReentrantPerEntryLockContainer.ownsLock(OwnableReentrantPerEntryLockContainer.java:28) at org.infinispan.util.concurrent.locks.LockManagerImpl.ownsLock(LockManagerImpl.java:123) at org.infinispan.util.concurrent.locks.DeadlockDetectingLockManager.localVsLocalDld(DeadlockDetectingLockManager.java:94) at org.infinispan.util.concurrent.locks.DeadlockDetectingLockManager.lockAndRecord(DeadlockDetectingLockManager.java:78) at org.infinispan.container.EntryFactoryImpl.acquireLock(EntryFactoryImpl.java:205) at org.infinispan.container.EntryFactoryImpl.wrapEntryForWriting(EntryFactoryImpl.java:148) at org.infinispan.container.EntryFactoryImpl.wrapEntryForWriting(EntryFactoryImpl.java:106) at org.infinispan.interceptors.LockingInterceptor.visitLockControlCommand(LockingInterceptor.java:146) at org.infinispan.commands.control.LockControlCommand.acceptVisitor(LockControlCommand.java:136) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:132) at org.infinispan.commands.AbstractVisitor.visitLockControlCommand(AbstractVisitor.java:147) at org.infinispan.commands.control.LockControlCommand.acceptVisitor(LockControlCommand.java:136) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:132) at org.infinispan.commands.AbstractVisitor.visitLockControlCommand(AbstractVisitor.java:147) at org.infinispan.commands.control.LockControlCommand.acceptVisitor(LockControlCommand.java:136) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118) at org.infinispan.interceptors.MarshalledValueInterceptor.visitLockControlCommand(MarshalledValueInterceptor.java:92) at org.infinispan.commands.control.LockControlCommand.acceptVisitor(LockControlCommand.java:136) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118) at org.infinispan.interceptors.TxInterceptor.enlistReadAndInvokeNext(TxInterceptor.java:171) at org.infinispan.interceptors.TxInterceptor.visitLockControlCommand(TxInterceptor.java:115) at org.infinispan.commands.control.LockControlCommand.acceptVisitor(LockControlCommand.java:136) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118) at org.infinispan.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:58) at org.infinispan.interceptors.InvocationContextInterceptor.handleDefault(InvocationContextInterceptor.java:39) at org.infinispan.commands.AbstractVisitor.visitLockControlCommand(AbstractVisitor.java:147) at org.infinispan.commands.control.LockControlCommand.acceptVisitor(LockControlCommand.java:136) at org.infinispan.interceptors.InterceptorChain.invoke(InterceptorChain.java:271) at org.infinispan.CacheDelegate.lock(CacheDelegate.java:296) at org.infinispan.CacheDelegate.lock(CacheDelegate.java:289) at test.TestReplace.increase(TestReplace.java:112) at test.TestReplace.access$000(TestReplace.java:20) at test.TestReplace$XThread.run(TestReplace.java:95) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira