It looks for me that you mix JPA annotations (OneToMany, Entity, Id) with JDO api. - using PersistenceManager. It is hard to say how it behaves and disentangle that issue.
But if you want to have bi-directional ownership - in News entity Source instance - follow this thread, it could shed some light. http://groups.google.co.uk/group/google-appengine-java/browse_frm/thread/28d9c3b99df25e43/de54fff7bc059f11?lnk=gst&q=snippet#de54fff7bc059f11 --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en -~----------~----~----~----~------~----~------~--~---