The discussion at http://groups.google.com/group/google-appengine-java/browse_thread/thread/b3e33070ab8c9ddb/5a85084fc1a5dd9e?lnk=gst&q=Local+datastore+empty#5a85084fc1a5dd9e
might be relevant. On Oct 14, 1:07 pm, Michael P <mp31...@gmail.com> wrote: > Yes, I saw exactly the same. I tried to post exception log on GAE > group but for some reason my post didn't pass moderator. > I don't have the stack trace anymore, but the issue was with > incompatible serialization (InvalidCastException) when reading a local > datastore. And on a second run the datastore was empty. Sounds like a > breaking change to me. -- 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.