[infinispan-issues] [JBoss JIRA] (ISPN-3765) SingleFileStoreStressTest.testWritesAndClear && SingleFileStoreFunctionalTest.testParsingEmptyElement fail with IBM6 JDK

[Dan Berindei (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-3765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12946190#comment-12946190 ] 

Dan Berindei commented on ISPN-3765:
------------------------------------

The synchronization around the {{freeList}} seems fine, this may be a bug in the TreeSet sub-set iterator in IBM JDK.

However, I tried to remove the entry directly from the set instead of using the iterator, and I got some garbage in the file, so there may still be some problem with our synchronization. FWIW, I replaced the TreeSet with a ConcurrentSkipListSet and I still got garbage in the store and an EOFException on read.
                
> SingleFileStoreStressTest.testWritesAndClear && SingleFileStoreFunctionalTest.testParsingEmptyElement fail with IBM6 JDK
> ------------------------------------------------------------------------------------------------------------------------
>
>                 Key: ISPN-3765
>                 URL: https://issues.jboss.org/browse/ISPN-3765
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Loaders and Stores
>    Affects Versions: 6.0.0.Final
>         Environment: RHEL6x86 IBM6
>            Reporter: Vitalii Chepeliuk
>            Assignee: Dan Berindei
>              Labels: testsuite_stability
>         Attachments: traces.zip
>
>
> Following exception is thrown
> java.util.concurrent.ExecutionException: java.lang.Exception: org.infinispan.persistence.spi.PersistenceException: java.lang.NullPointerException
> 	at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:233)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:94)
> 	at org.infinispan.persistence.file.SingleFileStoreStressTest.testWritesAndClear(SingleFileStoreStressTest.java:127)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
> 	at java.lang.reflect.Method.invoke(Method.java:611)
> 	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:80)
> 	at org.testng.internal.Invoker.invokeMethod(Invoker.java:715)
> 	at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:907)
> 	at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1237)
> 	at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
> 	at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
> 	at org.testng.TestRunner.privateRun(TestRunner.java:767)
> 	at org.testng.TestRunner.run(TestRunner.java:617)
> 	at org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
> 	at org.testng.SuiteRunner.access$000(SuiteRunner.java:37)
> 	at org.testng.SuiteRunner$SuiteWorker.run(SuiteRunner.java:368)
> 	at org.testng.internal.thread.ThreadUtil$2.call(ThreadUtil.java:64)
> 	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:314)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:149)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:908)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:931)
> 	at java.lang.Thread.run(Thread.java:738)
> Caused by: java.lang.Exception: org.infinispan.persistence.spi.PersistenceException: java.lang.NullPointerException
> 	at org.infinispan.persistence.file.SingleFileStoreStressTest$StopOnExceptionTask.call(SingleFileStoreStressTest.java:257)
> 	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:314)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:149)
> 	... 1 more
> Caused by: org.infinispan.persistence.spi.PersistenceException: java.lang.NullPointerException
> 	at org.infinispan.persistence.file.SingleFileStore.write(SingleFileStore.java:317)
> 	at org.infinispan.persistence.file.SingleFileStoreStressTest$WriteTask.call(SingleFileStoreStressTest.java:169)
> 	at org.infinispan.persistence.file.SingleFileStoreStressTest$StopOnExceptionTask.call(SingleFileStoreStressTest.java:254)
> 	... 3 more
> Caused by: java.lang.NullPointerException
> 	at java.util.TreeMap$AbstractSubMapIterator.remove(TreeMap.java:218)
> 	at org.infinispan.persistence.file.SingleFileStore.allocate(SingleFileStore.java:242)
> 	at org.infinispan.persistence.file.SingleFileStore.write(SingleFileStore.java:284)
> 	... 5 more
> You can check all 5 builds were running here
> https://jenkins.mw.lab.eng.bos.redhat.com/hudson/view/JDG/view/FUNC/job/edg-60-ispn-testsuite-rhel-ibm6/USE_JDK=JDK6,jdk=ibm17,label=RHEL6_x86/

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