[infinispan-issues] [JBoss JIRA] Work started: (ISPN-594) With deadlock detection enabled, occasional null pointer exceptions are experienced when using the lock() API

[Manik Surtani (JIRA)]

     [ https://jira.jboss.org/browse/ISPN-594?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on ISPN-594 started by Manik Surtani.

> 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
>
>         Attachments: infinispan-lock.tgz
>
>
> 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)

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