I find it interesting that Glassfish will return 503 error (Service
Unavailable) and will show informative message while it is busy
loading the application.
Then user knows that he(or she) needs to reload the page in browser,
and the app will come up.
I guess from free service we can't ask that ap
I suspect the data is still there, but somehow not visible to your
queries.
For example, following happened in my case: I had a query that
retrieves my (root) entities, but they are ordered by sequence_id . In
1.3.0., this query worked fine even if sequence_id is un-initialized
(is null). With 1.3.