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https://issues.apache.org/jira/browse/LUCENE-3335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13071567#comment-13071567
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Uwe Schindler commented on LUCENE-3335:
---------------------------------------

I got new information from Vladimir about the Porter bug in Java 1.6: "The code 
in memnode.cpp was there for long time (before 6u26). But before my changes it 
was guarded by OptimizeStringConcat flag. So if you use 
-XX:+OptimizeStringConcat or -XX:+AggressiveOpts  flags you will hit the same 
problem (I reproduced it even with 1.6.0_23)"

This might be the reason behind 
[http://www.lucidimagination.com/search/document/3beaa082c4d2fdd4/porterstemfilter_kills_jvm],
 but we never got a response. If he used aggressive opts he has the same 
problem.

> jrebug causes porter stemmer to sigsegv
> ---------------------------------------
>
>                 Key: LUCENE-3335
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3335
>             Project: Lucene - Java
>          Issue Type: Bug
>            Reporter: Robert Muir
>              Labels: Java7
>         Attachments: LUCENE-3335.patch, LUCENE-3335_slow.patch, 
> patch-0uwe.patch
>
>
> happens easily on java7: ant test -Dtestcase=TestPorterStemFilter 
> -Dtests.iter=100
> might happen on 1.6.0_u26 too, a user reported something that looks like the 
> same bug already:
> http://www.lucidimagination.com/search/document/3beaa082c4d2fdd4/porterstemfilter_kills_jvm

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