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From "Uwe Schindler" <...@thetaphi.de>
Subject RE: [VOTE] release 3.3
Date Fri, 24 Jun 2011 15:32:31 GMT
The bug is *not* fixed by replacing Long.numberOfLeadingZeros(word) with BitUtils.nlz(word).

So this is really strange. Also happens with -Xbatch.

-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: uwe@thetaphi.de


> -----Original Message-----
> From: Uwe Schindler [mailto:uwe@thetaphi.de]
> Sent: Friday, June 24, 2011 5:20 PM
> To: dev@lucene.apache.org
> Subject: RE: [VOTE] release 3.3
> 
> I assume the problem is the intrinsic, I will replace by the own hacker's
> delight impl (like we do everywhere else in OpenBitSet, why did we use the
> platform method here?) and try again....
> 
> Uwe
> 
> -----
> Uwe Schindler
> H.-H.-Meier-Allee 63, D-28213 Bremen
> http://www.thetaphi.de
> eMail: uwe@thetaphi.de
> 
> 
> > -----Original Message-----
> > From: Robert Muir [mailto:rcmuir@gmail.com]
> > Sent: Friday, June 24, 2011 5:07 PM
> > To: dev@lucene.apache.org
> > Subject: Re: [VOTE] release 3.3
> >
> > Just some more info: i took away the seed and used -Dtests.iter=100 on
> > this
> > test:
> >
> > JAVA5:
> >     [junit] Testsuite: org.apache.lucene.util.TestOpenBitSet
> >     [junit] Tests run: 400, Failures: 0, Errors: 23, Time elapsed:
> > 21.793 sec
> >
> > JAVA6:
> > junit-sequential:
> >     [junit] Testsuite: org.apache.lucene.util.TestOpenBitSet
> >     [junit] Tests run: 400, Failures: 0, Errors: 0, Time elapsed:
> > 19.719 sec
> >
> > so this test fails 23% of the time on java5.
> >
> > The reason we never caught it, is that java5 is unmaintained and we
> > cannot even test it in hudson... aka we cannot support this monster
> anymore!!!!
> >
> > On Fri, Jun 24, 2011 at 11:02 AM, Robert Muir <rcmuir@gmail.com> wrote:
> > > On Fri, Jun 24, 2011 at 10:54 AM, Uwe Schindler <uwe@thetaphi.de>
> > wrote:
> > >> The OpenBitSet test is in all cases serious (vs. the skiplist test
> > >> is a test bug,
> > that true).
> > >>
> > >> The AIOOBE is caused inside OpenBitSet and that should never ever
> > happen, even if you use it incorrectly!
> > >
> > > Its not clear that its that serious, it only fails with java 5 for
> > > me (not java 6) :)
> > >
> > > Looks like a bug in java 5...
> > >
> >
> > ---------------------------------------------------------------------
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> 
> 
> 
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