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https://issues.apache.org/jira/browse/LUCENE-5612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13975200#comment-13975200
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Robert Muir commented on LUCENE-5612:
-------------------------------------
Yeah, we can hammer out all these test bugs by using
-Dtests.directory=NIOFSDirectory and so on.
Personally I want to remove testExactFileNames, the test is nearly useless and
has never found a real bug for me, only false failures. its hard to maintain
since it must conditionalize itself based on codecs and so on.
for the testExceptionsDuringCommit, its the same story, but easier to fix the
test without making it confusing.
> LockStressTest fails always with NativeFSLockFactory
> ----------------------------------------------------
>
> Key: LUCENE-5612
> URL: https://issues.apache.org/jira/browse/LUCENE-5612
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Robert Muir
> Priority: Blocker
> Fix For: 4.8
>
> Attachments: LUCENE-5612-instant-crush.patch,
> LUCENE-5612-instant-crush.patch,
> LUCENE-5612-more-sophisticated-crusher.patch,
> LUCENE-5612-more-sophisticated-crusher.patch,
> LUCENE-5612-more-sophisticated-crusher.patch,
> LUCENE-5612-more-sophisticated-crusher.patch,
> LUCENE-5612-more-sophisticated-crusher.patch,
> LUCENE-5612-more-sophisticated-crusher.patch, LUCENE-5612-tester.patch,
> LUCENE-5612-tester.patch, LUCENE-5612.patch, LUCENE-5612.patch
>
>
> I was looking at this, because i wanted to remove the static map inside
> NativeFSLockFactory (no particular reason: it just smells bad, we require
> java7, and you get overlappingexception as of java6 so its unnecessary).
> Before changing any code, i wanted to run lockstresstest first, just to
> ensure it works: but it fails always. Simple works fine always.
> Exception in thread "main" java.lang.RuntimeException:
> java.lang.RuntimeException: lock was double acquired at
> org.apache.lucene.store.VerifyingLockFactory$CheckedLock.verify(VerifyingLockFactory.java:67)
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