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From "Jarek Gawor (JIRA)" <>
Subject [jira] [Commented] (GERONIMO-5744) bundle urls and 3rd party libraries
Date Thu, 23 Jun 2011 03:48:47 GMT


Jarek Gawor commented on GERONIMO-5744:

I committed the patch with some additional changes / simplifications to trunk in revision
1138728. By default the Equinox-specific classloader is not enabled. It can be enabled by
setting the "org.apache.geronimo.equinox.useURLClassLoader" system property to "true". We
can change this default in the future after a bit more testing.

> bundle urls and 3rd party libraries
> -----------------------------------
>                 Key: GERONIMO-5744
>                 URL:
>             Project: Geronimo
>          Issue Type: Bug
>      Security Level: public(Regular issues) 
>          Components: deployment
>    Affects Versions: 3.0-M2
>            Reporter: Jarek Gawor
>         Attachments: GERONIMO-5744.patch
> 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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