App Engine Unit tests problem with JPA 2.0

[Peter]

Hi

I have a problem with my unit tests since I've changed to JPA v2. When I try to run tests from Eclipse I get an error: 

"org.datanucleus.exceptions.NucleusException: Plugin (Bundle) "org.datanucleus" is already registered. Ensure you dont have multiple JAR versions of the same plugin in the classpath. The URL "file:/myeclipseloc/plugins/com.google.appengine.eclipse.sdkbundle_1.7.4/appengine-java-sdk-1.7.4/lib/opt/user/datanucleus/v2/datanucleus-core-3.1.1.jar" is already registered, and you are trying to register an identical plugin located at URL "file:/myeclipseloc/plugins/com.google.appengine.eclipse.sdkbundle_1.7.4/appengine-java-sdk-1.7.4/lib/opt/user/datanucleus/v1/datanucleus-core-1.1.5.jar.""

It seems the test tries to load jars from app engine sdk's datanucleus/v1 directory.

Is there any way to configure my test classes to use v2 instead of v1 or any other solutions to resolve this?

My code if it's helps:

protected final LocalServiceTestHelper helper = new LocalServiceTestHelper(

new LocalDatastoreServiceTestConfig());

...

helper.setUp();

...

Thanks,

Peter