[news.eclipse.rt.eclipselink] OSGI troubles with createEntityManagerFact

[Beat Strasser <beat@xxxxxxxxxxx>]

Hi there

I'd like to use EclipseLink in an OSGi server environment (Equinox), 
but I can't get an EntityManagerFactory. I've done some successful 
tests with a milestone some weeks/months ago, but this doesn't work 
anymore.

When I try to get the EntityManagerFactory in the Activator's start 
method of the bundle that contains the persistence.xml 
(javax.persistence and org.eclipse.persistence.jpa are started one 
osgi start level before), I get the following errors:

1) When I don't specify any properties:
   Persistence.createEntityManagerFactory("unitname");

   The OSGiPersistenceInitializationHelper#getClassLoader is called 
with "bundleresource://7/unitname" and doesn't find an entry for this, 
because the map contains only a key "unitname".

2) When I specify Thread.currentThread().getContextClassLoader() as a 
class loader property, this class loader doesn't find the resource 
"META-INF/persistence.xml" in 
PersistenceProvider#createEntityManagerFactory:95.

What am I doing wrong?

BTW: it would be very helpful when the EclipseLink website would 
provide an OSGi SDK zip download which contains the source plugins. I 
had to checkout the projects from the SVN tag to debug the problem...

Thanks for any hint,
Beat Strasser