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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3101) TestMinimize.testAgainstBrzozowski reproducible seed OOM
Date Mon, 16 May 2011 13:05:47 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13034004#comment-13034004
] 

Robert Muir commented on LUCENE-3101:
-------------------------------------

Thanks for reporting this selckin, this is a great find, definitely amazed we randomly generated
this one :)

> TestMinimize.testAgainstBrzozowski reproducible seed OOM
> --------------------------------------------------------
>
>                 Key: LUCENE-3101
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3101
>             Project: Lucene - Java
>          Issue Type: Bug
>            Reporter: selckin
>            Assignee: Uwe Schindler
>             Fix For: 4.0
>
>         Attachments: LUCENE-3101.patch, LUCENE-3101.patch, LUCENE-3101.patch, LUCENE-3101_test.patch
>
>
> {code}
>     [junit] Testsuite: org.apache.lucene.util.automaton.TestMinimize
>     [junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 3.792 sec
>     [junit] 
>     [junit] ------------- Standard Error -----------------
>     [junit] NOTE: reproduce with: ant test -Dtestcase=TestMinimize -Dtestmethod=testAgainstBrzozowski
-Dtests.seed=-7429820995201119781:1013305000165135537
>     [junit] NOTE: test params are: codec=PreFlex, locale=ru, timezone=America/Pangnirtung
>     [junit] NOTE: all tests run in this JVM:
>     [junit] [TestMinimize]
>     [junit] NOTE: Linux 2.6.37-gentoo amd64/Sun Microsystems Inc. 1.6.0_25 (64-bit)/cpus=8,threads=1,free=294745976,total=310378496
>     [junit] ------------- ---------------- ---------------
>     [junit] Testcase: testAgainstBrzozowski(org.apache.lucene.util.automaton.TestMinimize):
    Caused an ERROR
>     [junit] Java heap space
>     [junit] java.lang.OutOfMemoryError: Java heap space
>     [junit]     at java.util.BitSet.initWords(BitSet.java:144)
>     [junit]     at java.util.BitSet.<init>(BitSet.java:139)
>     [junit]     at org.apache.lucene.util.automaton.MinimizationOperations.minimizeHopcroft(MinimizationOperations.java:85)
>     [junit]     at org.apache.lucene.util.automaton.MinimizationOperations.minimize(MinimizationOperations.java:52)
>     [junit]     at org.apache.lucene.util.automaton.RegExp.toAutomaton(RegExp.java:502)
>     [junit]     at org.apache.lucene.util.automaton.RegExp.toAutomatonAllowMutate(RegExp.java:478)
>     [junit]     at org.apache.lucene.util.automaton.RegExp.toAutomaton(RegExp.java:428)
>     [junit]     at org.apache.lucene.util.automaton.AutomatonTestUtil.randomAutomaton(AutomatonTestUtil.java:256)
>     [junit]     at org.apache.lucene.util.automaton.TestMinimize.testAgainstBrzozowski(TestMinimize.java:43)
>     [junit]     at org.apache.lucene.util.LuceneTestCase$LuceneTestCaseRunner.runChild(LuceneTestCase.java:1282)
>     [junit]     at org.apache.lucene.util.LuceneTestCase$LuceneTestCaseRunner.runChild(LuceneTestCase.java:1211)
>     [junit] 
>     [junit] 
>     [junit] Test org.apache.lucene.util.automaton.TestMinimize FAILED
> {code}

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