It is deployed already but it is possible to have sometimes several containers with 
the same beans.

For instance in the BB module, each bean is deployed twice (although it could be 
once), there is one read-only container optimized for speed and one read-write 
container used for updates. Of course both containers communicates to invalidate 
entries.

In addition, the fact we use several time the same bean deployed is necessary because 
you are not authorized to create a relationship between deployments. So the only way 
to have UserEJB + PostEJB (in the forum) is to deploy again the UserEJB in the same 
ejb-jar the forum is. (It may seem a bit stupid, but it is actually). I don't know if 
hibernate allow that kind of stuff.

Otherwise if you don't want to deploy a new UserEJB, you have to use user in your 
module with the concept of user ID. For instance on the PostEJB we would have get/set 
UserId(Integer) instance of get/set User(UserEJBLocal) and I prefer the second one 
rather than the first one.

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