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https://issues.apache.org/jira/browse/JCR-1261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12558978#action_12558978
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Felix Meschberger commented on JCR-1261:
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I don't think Jukka's patch matches the original intent of this issue, which
was really concerned with performance. And while the JAXP XML parser library
setup may work for your general out of the box application, I think it has
serious shortcomings ... But this is another story ;-)
How about postponing this issue and turn it into something like: Drop DOM for
performance and memory footprint reasons.
> Replace Xerces/JAXP based (un)marshalling by KXml2 based implementation
> -----------------------------------------------------------------------
>
> Key: JCR-1261
> URL: https://issues.apache.org/jira/browse/JCR-1261
> Project: Jackrabbit
> Issue Type: Improvement
> Components: jackrabbit-webdav
> Affects Versions: 1.3.3
> Reporter: Felix Meschberger
> Assignee: Felix Meschberger
> Attachments: JCR-1261.drop-xerces.patch, JCR-1261.patch,
> JCR-1261_2.patch
>
>
> Proposing to replace the current Xerces/JAXP based implementation of XML data
> unmarshalling and marshalling to be replaced by a MXP ([1]) based
> implementation. MXP is an implementation of the XML PullParser API [2] and
> provides a very mall footprint (120KB) and far better performance than Xerces
> (my tests showed around 50% performance increase over Xerces for both
> unmarshalling and marshalling, see also [3]).
> Why do I care ? I would like to include WebDAV functionality into Sling and
> bundle is with as little dependencies as possible ( the xpp3 lib might even
> be bundled into this project to minimize dependencies). In addition, I think
> XML (un)marshalling performance is crucial in any WebDAV solution. For this
> reason, this project can only win if we add a more performing library.
> [1] http://www.extreme.indiana.edu/xgws/xsoap/xpp/mxp1/
> [2] http://www.xmlpull.org
> [3] http://www.extreme.indiana.edu/~aslom/xpp_sax2bench/results.html
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