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From "Chris Twiner (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MUSE-270) EMPTY_DOC thread stability issues
Date Wed, 23 Apr 2008 14:55:21 GMT

    [ https://issues.apache.org/jira/browse/MUSE-270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12591662#action_12591662
] 

Chris Twiner commented on MUSE-270:
-----------------------------------

The thread context patch isn't correct.  It should be :
       
    	// CTw for handling code that sets the context classloader when the TLS is used from
a different thread context classloader.
    	// "this" is used as the initialization occurs on the correct classloader.  The current
context classloader also can't be garaunteed.
    	ClassLoader cl = this.getClass().getClassLoader();
    	
Will attach a patch later

> 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: 270tsPatch2.txt, 270tsPatch3.txt, epr-tests.zip, muse_src.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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