bundle urls and 3rd party libraries
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                 Key: GERONIMO-5744
                 URL: https://issues.apache.org/jira/browse/GERONIMO-5744
             Project: Geronimo
          Issue Type: Bug
      Security Level: public (Regular issues)
          Components: deployment
    Affects Versions: 3.0-M2
            Reporter: Jarek Gawor


Resource lookup in Geronimo 3.0 returns "bundle" type of urls. However, a lot 
of Geronimo code and a number of third party libraries assumes that urls 
returned by resource lookup return "jar" or "file" type of urls. Because of 
this difference a lot of applications might not work properly on Geronimo 3.0. 
The Geronimo specific code has mostly been updated to use OSGi-friendly ways to 
look for resources. However, we can't expect every 3rd party library to be 
updated to be OSGi friendly. So we might need a solution that can return "jar" 
or "file" urls that works with most libraries.

One possible solution is to use the BundleResourceClassLoader in the 
xbean-bundleutils project (currently used in the OpenJPA plugin). That solution 
could be enhanced with Equinox-specific extension (URLConverter service) that 
can convert "bundle" urls directly into "jar" or "file" urls (using the jars in 
its bundle cache).



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