Hi,

We are using Modeshape 4.4.0.Final release with Infinispan 7.2.3 installed in TomEE and using Java 7.

The repository starts and works. However, if we add some concurrency (100 threads) adding and removing nodes we found, from time to time, a Nullpointer with the following stacktrace:

org.infinispan.interceptors.InvocationContextInterceptor handleAll

ERROR: ISPN000136: Execution error java.lang.NullPointerException

  at org.infinispan.commons.util.concurrent.jdk8backported.BoundedEquivalentConcurrentHashMapV8$LIRSEvictionPolicy.findIfEntriesNeedEvicting(BoundedEquivalentConcurrentHashMapV8.java:1397)

  at org.infinispan.commons.util.concurrent.jdk8backported.BoundedEquivalentConcurrentHashMapV8.compute(BoundedEquivalentConcurrentHashMapV8.java:3487)

  at org.infinispan.container.DefaultDataContainer$BoundedEquivalentConcurrentExtendedMap.putAndActivate(DefaultDataContainer.java:556)

  at org.infinispan.container.DefaultDataContainer.put(DefaultDataContainer.java:192)

  at org.infinispan.container.entries.ReadCommittedEntry.commit(ReadCommittedEntry.java:168)

  at org.infinispan.statetransfer.CommitManager.commit(CommitManager.java:98)

  at org.infinispan.interceptors.locking.ClusteringDependentLogic$LocalLogic.commitSingleEntry(ClusteringDependentLogic.java:255)

  at org.infinispan.interceptors.locking.ClusteringDependentLogic$AbstractClusteringDependentLogic.commitEntry(ClusteringDependentLogic.java:108)

  at org.infinispan.interceptors.EntryWrappingInterceptor.commitContextEntry(EntryWrappingInterceptor.java:371)

  at org.infinispan.interceptors.EntryWrappingInterceptor.commitEntryIfNeeded(EntryWrappingInterceptor.java:549)

  at org.infinispan.interceptors.EntryWrappingInterceptor.commitContextEntries(EntryWrappingInterceptor.java:348)

  at org.infinispan.interceptors.EntryWrappingInterceptor.invokeNextAndApplyChanges(EntryWrappingInterceptor.java:422)

  at org.infinispan.interceptors.EntryWrappingInterceptor.setSkipRemoteGetsAndInvokeNextForDataCommand(EntryWrappingInterceptor.java:453)

  at org.infinispan.interceptors.EntryWrappingInterceptor.visitPutKeyValueCommand(EntryWrappingInterceptor.java:195)

  at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:71)

  at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:97)

  at org.infinispan.interceptors.locking.AbstractLockingInterceptor.visitNonTxDataWriteCommand(AbstractLockingInterceptor.java:88)

  at org.infinispan.interceptors.locking.NonTransactionalLockingInterceptor.visitDataWriteCommand(NonTransactionalLockingInterceptor.java:40)

  at org.infinispan.interceptors.locking.AbstractLockingInterceptor.visitPutKeyValueCommand(AbstractLockingInterceptor.java:55)

  at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:71)

  at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:97)

  at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:111)

  at org.infinispan.commands.AbstractVisitor.visitPutKeyValueCommand(AbstractVisitor.java:44)

  at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:71)

  at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:97)

  at org.infinispan.interceptors.CacheMgmtInterceptor.updateStoreStatistics(CacheMgmtInterceptor.java:191)

  at org.infinispan.interceptors.CacheMgmtInterceptor.visitPutKeyValueCommand(CacheMgmtInterceptor.java:177)

  at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:71)

  at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:97)

  at org.infinispan.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:102)

  at org.infinispan.interceptors.InvocationContextInterceptor.handleDefault(InvocationContextInterceptor.java:71)

  at org.infinispan.commands.AbstractVisitor.visitPutKeyValueCommand(AbstractVisitor.java:44)

  at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:71)

  at org.infinispan.interceptors.InterceptorChain.invoke(InterceptorChain.java:336)

  at org.infinispan.cache.impl.CacheImpl.executeCommandAndCommitIfNeeded(CacheImpl.java:1617)

  at org.infinispan.cache.impl.CacheImpl.putIfAbsentInternal(CacheImpl.java:1122)

  at org.infinispan.cache.impl.CacheImpl.putIfAbsent(CacheImpl.java:1112)

  at org.infinispan.cache.impl.CacheImpl.putIfAbsent(CacheImpl.java:1717)

  at org.infinispan.cache.impl.CacheImpl.putIfAbsent(CacheImpl.java:283)

  at org.modeshape.jcr.cache.document.WorkspaceCache.getNode(WorkspaceCache.java:244)

  at org.modeshape.jcr.cache.document.NodeCacheIterator.nextNode(NodeCacheIterator.java:103)

  at org.modeshape.jcr.cache.document.NodeCacheIterator.hasNext(NodeCacheIterator.java:70)

  at org.modeshape.jcr.query.NodeSequence$16.hasNext(NodeSequence.java:1450)

  at org.modeshape.jcr.query.NodeSequence$23.findNext(NodeSequence.java:1863)

  at org.modeshape.jcr.query.NodeSequence$23.hasNext(NodeSequence.java:1849)

  at org.modeshape.jcr.query.NodeSequence$23.findNext(NodeSequence.java:1863)

  at org.modeshape.jcr.query.NodeSequence$23.hasNext(NodeSequence.java:1849)

  at org.modeshape.jcr.query.NodeSequence$23.findNext(NodeSequence.java:1863)

  at org.modeshape.jcr.query.NodeSequence$23.hasNext(NodeSequence.java:1849)

  at org.modeshape.jcr.query.NodeSequence$SingleWidthBatch.<init>(NodeSequence.java:1920)

  at org.modeshape.jcr.query.NodeSequence.copy(NodeSequence.java:1907)

  at org.modeshape.jcr.query.engine.process.RestartableSequence.loadBatch(RestartableSequence.java:213)

  at org.modeshape.jcr.query.engine.process.RestartableSequence$1.nextBatch(RestartableSequence.java:92)

  at org.modeshape.jcr.query.engine.process.RestartableSequence.nextBatch(RestartableSequence.java:119)

  at org.modeshape.jcr.query.JcrQueryResult$QueryResultIterator.findNextBatch(JcrQueryResult.java:257)

  at org.modeshape.jcr.query.JcrQueryResult$QueryResultIterator.hasNext(JcrQueryResult.java:241)

  at com.hp.exstream.hes.repository.impl.ApplicationRepository.searchApplications(ApplicationRepository.java:99)
  ...

Attached you can find infinispan_config.xml and modeshape_config.json.

We've tried to disable Eviction (NONE) and also change it to LRU with same results.

Do you know what is happening? Are we doing something wrong? With Modeshape 3.8.0 the same code is working with the same load.

Thanks