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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-4736) Some tests fail with IBM J9 due to strange TimerThread zombies that cannot be killed
Date Wed, 30 Jan 2013 15:41:13 GMT
Michael McCandless created LUCENE-4736:
------------------------------------------

             Summary: Some tests fail with IBM J9 due to strange TimerThread zombies that
cannot be killed
                 Key: LUCENE-4736
                 URL: https://issues.apache.org/jira/browse/LUCENE-4736
             Project: Lucene - Core
          Issue Type: Bug
            Reporter: Michael McCandless


EG:

{noformat}
ant test -Dtestcase=TestIndexWriterDelete -Dtests.seed=A22BC3E06CEC0036
{noformat}

Takes a while and then fails with this:

{noformat}
[junit4:junit4] ERROR   0.00s J2 | TestIndexWriterDelete (suite) <<<
[junit4:junit4]    > Throwable #1:
com.carrotsearch.randomizedtesting.ThreadLeakError: 1 thread leaked
from SUITE scope at org.apache.lucene.index.TestIndexWriterDelete:
[junit4:junit4]    >    1) Thread[id=102, name=Thread-44,
state=TIMED_WAITING, group=TGRP-TestIndexWriterDelete]
[junit4:junit4]    >         at java.lang.Object.wait(Native Method)
[junit4:junit4]    >         at java.lang.Object.wait(Object.java:196)
[junit4:junit4]    >         at java.util.Timer$TimerImpl.run(Timer.java:247)
[junit4:junit4]    >    at __randomizedtesting.SeedInfo.seed([C9014BCB129899BF]:0)
[junit4:junit4]    > Throwable #2:
com.carrotsearch.randomizedtesting.ThreadLeakError: There are still
zombie threads that couldn't be terminated:
[junit4:junit4]    >    1) Thread[id=102, name=Thread-44,
state=TIMED_WAITING, group=TGRP-TestIndexWriterDelete]
[junit4:junit4]    >         at java.lang.Object.wait(Native Method)
[junit4:junit4]    >         at java.lang.Object.wait(Object.java:196)
[junit4:junit4]    >         at java.util.Timer$TimerImpl.run(Timer.java:247)
[junit4:junit4]    >    at __randomizedtesting.SeedInfo.seed([C9014BCB129899BF]:0)
{noformat}

Java version is:
{noformat}
java version "1.6.0"
Java(TM) SE Runtime Environment (build pxa6460sr9fp2ifix-20111111_05(SR9 FP2+IV03622+IV02378+IZ99243+IZ97310+IV00707))
IBM J9 VM (build 2.4, JRE 1.6.0 IBM J9 2.4 Linux amd64-64 jvmxa6460sr9-20111111_94827 (JIT
enabled, AOT enabled)
J9VM - 20111111_094827
JIT  - r9_20101028_17488ifx45
GC   - 20101027_AA)
JCL  - 20110727_04
{noformat}


Curiously, I think it tends to happen on a test that fails an assumption?  Or maybe I'm just
imagining that ...

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