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https://issues.apache.org/jira/browse/LUCENE-3335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13070057#comment-13070057
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Uwe Schindler commented on LUCENE-3335:
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bq. wait, how do you know? Do all Solr tests pass with -Xint?

Solr tests also do not pass with -Xint. It seems to be a concurrency bug in 
Solr's caching. With caching disabled (in SolrIndexSearcher), tests pass except 
those which directly check cache contents. This affects TestFiltering, 
RequiredFieldsTest and more tests (fail randomly depending on load).

Another test randomly fails without reason: TestEchoParams (this test looks 
like chinese to me, I dont understand any single line and what is tested at 
all).

> 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
>         Attachments: LUCENE-3335.patch, LUCENE-3335_slow.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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