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https://issues.apache.org/jira/browse/LUCENE-3235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13054353#comment-13054353
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Dawid Weiss commented on LUCENE-3235:
-------------------------------------
I don't think you can force -client if it's a 64 bit release and you have tons
of memory, can you? You can check by running java -client -version -- this is
what it tells me, for example:
{noformat}
dweiss@dweiss-linux:~/work/lucene/lucene-trunk$ java -client -version
java version "1.6.0_16"
Java(TM) SE Runtime Environment (build 1.6.0_16-b01)
Java HotSpot(TM) 64-Bit Server VM (build 14.2-b01, mixed mode)
{noformat}
Can you do a remote stack of all the VM (or run it from the console and send it
a signal to dump all threads)?
> 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
> Reporter: Michael McCandless
>
> 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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