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https://issues.apache.org/jira/browse/XBEAN-203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guillaume Nodet closed XBEAN-203.
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Resolution: Fixed
Fixed with a very minor modification to avoid a duplicate call to
reference.get() which could actually be cleared the second time.
http://svn.apache.org/viewvc/geronimo/xbean/trunk/xbean-classloader/src/main/java/org/apache/xbean/classloader/MultiParentClassLoader.java?rev=1347593&r1=1347592&r2=1347593&view=diff
> Performance improvement by adding local cache for
> MultiParentClassLoader#loadClass
> ----------------------------------------------------------------------------------
>
> Key: XBEAN-203
> URL: https://issues.apache.org/jira/browse/XBEAN-203
> Project: XBean
> Issue Type: Improvement
> Components: classloader
> Affects Versions: 3.7
> Reporter: Gert Vanthienen
> Assignee: Guillaume Nodet
> Fix For: 3.12
>
> Attachments:
> 0001-XBEAN-203-Performance-improvement-by-adding-local-ca.patch
>
>
> While profiling for performance issues on ServiceMix, we noticed a lot of
> time was spent waiting for the object lock to access MultiParentClassLoader's
> loadClass() method, especially when using things like JAXP. We managed to
> get significant improvements by adding a local cache to avoid the
> synchronized method invocation for previously loaded classes.
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