I've posted a new spec draft with the updated schema generation metadata
to the project Downloads area. This draft also contains the updated
persistence and orm schemas. I have also uploaded these xsd files to
the Downloads area.
Notice that the namespace in the schemas has changed, as we will no longer
be using java.sun.com for new work. There are no other modifications to
the schema for the persistence.xml, but since we have changed the orm schema,
I figured it would be less confusing if both xsd files were updated.
-Linda