Tom,
You are a genious!
This is the one that workaround the problem:
> eclipselink.weaving.fetchgroups=false
What means that option disabled?
I made my tests with Glassfish 3.1 m7 witch includes EclipseLink
2.2.0.v20101020-r8375, I supose it should be the same with
GFv3.0.1+EclipseLink 3.0.1.
Regards,
Xavier.