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https://issues.apache.org/jira/browse/MUSE-270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12564130#action_12564130
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Chris Twiner commented on MUSE-270:
-----------------------------------
I was just given a new dual core laptop at work (core2 Duo, T7500 2.20Ghz). As
such I have run the tests again against my patched wholeMuseFixed.jar 5 times
and it never misses a message (always 3000).
With the normal must jars it gets NPE's and over 5 runs (messages out of 3000
sent): 2468, 2549, 2522, 2617 and 2420. Strangely the gap is much less on this
new machine (was 1300-1500 on my other single cpu boxes).
I'm now confident that this fixes the EMPTY_DOC and Xerces NodeList issues.
(Again the NodeList fix depends on Xerces never breaking nextSibling in an mt
environment)
> EMPTY_DOC thread stability issues
> ---------------------------------
>
> Key: MUSE-270
> URL: https://issues.apache.org/jira/browse/MUSE-270
> Project: Muse
> Issue Type: Bug
> Components: Utilities - General, QName, and XML, WS-Addressing and
> SOAP
> Affects Versions: 2.0.0 M1, 2.0.0 M2, 2.0.0, 2.1.0, 2.2.0, 2.3.0
> Environment: Impacts all platforms and configurations
> Reporter: Rich Lucente
> Assignee: Dan Jemiolo
> Fix For: 2.3.0
>
> Attachments: epr-tests.zip, MuseThreadSafety.zip, WsnErrorsTest.zip
>
>
> This bug is being opened to track the EMPTY_DOC thread stability issue
> currently being discussed on the muse-dev mailing list. XmlUtils provides
> EMPTY_DOC as a scratchpad instance of a DOM Document for creation of
> elements. This has been shown to cause exceptions in a multi-threaded
> environment. The issue is compounded by the widespread use of EMPTY_DOC in
> the code due to its convenience and the reduction in object creation when
> constructing XML fragments.
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