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https://issues.apache.org/jira/browse/LUCENE-3235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13150355#comment-13150355
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Simon Willnauer commented on LUCENE-3235:
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bq. Thanks Simon, I think we should list this bug and its workaround in the
wiki page and close this report.
+1 this is not our problem. if we go and fix all java.util.concurrent uses in
solr & lucene we gonna end up in a big mess. According to the oracle blog this
is also in 1.6 jvms and you will be vulnderable if you use any CHM like classes
in your own code...
> TestDoubleBarrelLRUCache hangs under Java 1.5, 3.x and trunk, likely JVM bug
> ----------------------------------------------------------------------------
>
> Key: LUCENE-3235
> URL: https://issues.apache.org/jira/browse/LUCENE-3235
> Project: Lucene - Java
> Issue Type: Bug
> Affects Versions: 3.0, 3.1, 3.2, 3.3, 3.4
> Reporter: Michael McCandless
> Fix For: 3.5
>
> Attachments: LUCENE-3235.patch, LUCENE-3235.patch, LUCENE-3235.patch
>
>
> Not sure what's going on yet... but under Java 1.6 it seems not to hang bug
> under Java 1.5 hangs fairly easily, on Linux. Java is 1.5.0_22.
> I suspect this is relevant:
> http://stackoverflow.com/questions/3292577/is-it-possible-for-concurrenthashmap-to-deadlock
> which refers to this JVM bug
> http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6865591 which then refers
> to this one http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6822370
> It looks like that last bug was fixed in Java 1.6 but not 1.5.
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