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From "Kevan Miller (JIRA)" <j...@apache.org>
Subject [jira] [Created] (GERONIMO-6114) Avoid ServiceLoader lookup during OpenWebBeansInitializer
Date Thu, 18 Aug 2011 05:07:27 GMT
Avoid ServiceLoader lookup during OpenWebBeansInitializer
---------------------------------------------------------

                 Key: GERONIMO-6114
                 URL: https://issues.apache.org/jira/browse/GERONIMO-6114
             Project: Geronimo
          Issue Type: Sub-task
      Security Level: public (Regular issues)
    Affects Versions: 3.0
            Reporter: Kevan Miller
             Fix For: 3.0


OpenWebBeans initialization can represent a major portion of a Geronimo server's startup time.
I've seen it take nearly 1/4 of a server's startup time. Nearly all of this time is caused
because OpenWebBeans is using ServiceLoader.load(). 

A search of wired bundles shouldn't be necessary (and we should avoid, if possible). We should
be able to replace OpenWebBeans DefaultImplementationLoaderService with our own LoaderService
implementation. This LoaderService implementation could in turn avoid the use of XBean's BundleClassLoader
(BundleClassLoader.getResource() is what drives the getWiredBundle() processing).

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