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1. Empty EntityManager in Java EE bean on JBoss 5.1    stackoverflow.com

I'm a newbie in Java EE. This is the first project I'm trying to do and I have a problem that I just can't solve. I've created three projects: slowka-beans (EJB), slowka-persistance ...

2. how to handle entity manager can not find an object instance case?    stackoverflow.com

I have sceneario in which I have to check if an onject instance exist in entity manager. It works fine when the instance eexists but throws null pointer exception when it ...