I had one small issue when upgrading that required a code change. We are using property access, and I found OpenJPA 2.0.0-beta2 threw an error when it encountered abstract @MappedSuperclass classes which didn't contain any annotated properties. This worked fine under OpenJPA 1.2.x but 2.0.0 complains it can't determine the access type. I had to add @Access(AccessType.PROPERTY) annotation to these classes.
I also found problems in a couple of cases where we were using the Non-Standard Join Syntax (http://openjpa.apache.org/builds/2.0.0-beta2/apache-openjpa-2.0.0-beta2/docs/manual/ref_guide_mapping_notes_nonstdjoins.html) -- View this message in context: http://n2.nabble.com/OpenJPA-2-0-vs-1-2-tp4780098p4780847.html Sent from the OpenJPA Users mailing list archive at Nabble.com.
