[Off-topic] FYI Xerces 2.2

[Jean-Francois Arcand <jf...@apache.org>]

HI,

just a quick update with Xerces 2.2.  Two weeks ago, I tough I've found 
the problem Tomcat was having with Xerces 2,2 (by replacing struts.jar 
file with the 1.1 beta version, the bug did not show up again). I did 
some tests last week and the bug starts to re-appear, but not all the 
time (sometimes 10 runs works fine). First I was under the impression it 
was a bug in Digester, but that was a wrong assumption. I have discussed 
the issue with the Xerces team and sent a small test case to them that 
reproduce consistently the bug. They have changed the threading model in 
Xerces 2.2 and, IMO,  seems to be the cause (thread race).

The bug doesn't occurs all the time, but the struts-config.xml is the 
perfect candidate to reproduce the problem.

More news to come :-)

-- Jeanfrancois


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Re: [Off-topic] FYI Xerces 2.2

[Henri Gomez <hg...@apache.org>]

Jean-Francois Arcand wrote:
> HI,
> 
> just a quick update with Xerces 2.2.  Two weeks ago, I tough I've found 
> the problem Tomcat was having with Xerces 2,2 (by replacing struts.jar 
> file with the 1.1 beta version, the bug did not show up again). I did 
> some tests last week and the bug starts to re-appear, but not all the 
> time (sometimes 10 runs works fine). First I was under the impression it 
> was a bug in Digester, but that was a wrong assumption. I have discussed 
> the issue with the Xerces team and sent a small test case to them that 
> reproduce consistently the bug. They have changed the threading model in 
> Xerces 2.2 and, IMO,  seems to be the cause (thread race).
> 
> The bug doesn't occurs all the time, but the struts-config.xml is the 
> perfect candidate to reproduce the problem.
> 
> More news to come :-)

Thanks for the feed back ;)



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