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https://issues.apache.org/jira/browse/GERONIMO-4497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12661613#action_12661613
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Jeff Lu commented on GERONIMO-4497:
-----------------------------------
By copying xercesImpl and xmlParserAPIs into the lib\endorsed directory, the
performance is up to par as it is in Geronimo 1.1.1. It almost would make
sense to be able to copy the required jars into the application.ear\lib
directory.
> Searching for resources in MultiParentClassLoader is not fully optimized
> ------------------------------------------------------------------------
>
> Key: GERONIMO-4497
> URL: https://issues.apache.org/jira/browse/GERONIMO-4497
> Project: Geronimo
> Issue Type: Bug
> Security Level: public(Regular issues)
> Components: kernel
> Affects Versions: 2.1.4, 2.2
> Reporter: Tim McConnell
> Assignee: Tim McConnell
> Fix For: 2.1.4, 2.2
>
>
> In one failing scenario, the BIRT reporting engine is invoked with an XML
> data file to generate a PDF report file. MultiParentClassLoader.getResource()
> is invoked many times to search for various XML resources (e.g.,
> DocumentBuilderFactory). MultiParentClassLoader searches through the current
> classloader and all the parent classloaders, which it should, but this can
> take a considerable amount of time if the resource is never found. It seems
> that once a resource has been searched for and not found, there is no need to
> search for it again in the same classloader hierarchy.
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