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Jeremy Bauer commented on OPENJPA-932:
--------------------------------------

Comments on patches dated 2009-03-10 07:49 AM and 2009-03-11 08:41 AM.

1) PUNameCollision and related methods in ProductDerivations should be moved to PersistenceProductDerivation to keep openjpa-lib free of persistence artifacts.

2) Creating a jar is much preferred to checking one in, but I'm not sold on that yet either since (unless I'm mistaken) it is always in the classpath when running tests.  Anyone have other ideas for testing this scenario?

> Runtime enhancer doesn't work propery if there is a trailing persistence.xml file on the classpath.
> ---------------------------------------------------------------------------------------------------
>
>                 Key: OPENJPA-932
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-932
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: kernel
>    Affects Versions: 1.2.0, 2.0.0-M1, 2.0.0
>            Reporter: Rick Curtis
>         Attachments: OPENJPA-932-2.0.patch, OPENJPA-932-2.0.patch, OPENJPA-932-unitTest.patch
>
>
> I have an application where I am using runtime class enhancement via the javaagent and I set openjpa.RuntimeUnenhancedClasses=unsupported. My application works fine when running on 1.1.0 but when I moved to 1.2.0 (and 2.0.0) I started getting errors because my classes aren't being enhanced. 
> After debugging I determined that I had a jar on the end of my classpath that had a META-INF/persistence.xml file in it. The extra persistence.xml file has no PUs defined, and should have been ignored. When I removed that jar from my classpath things starting working again. It also works if I put my META-INF/persistence.xml file on the end of my classpath.

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