I'm using Hibernate syncrhonizer in a standalone application and I initialized the connection to the database with _RootDAO.initialize().

Should I close the session or anything else when shutting down the application ?

Anyway, once the application shut down, there is no more thread alive, that's I'm wondering if it is important.

I would suggest you call the close() method on the SessionFactory before you shutdown the application. Its always a good idea to cleanup resources (even though many Java developers never think about this aspect - maybe to much C++ in my past).

Thank you for your answer.
Hibernate Synchronizer generated some dao files and all methods referring to the session are private or protected.
Should I change any of those methods present in the _BaseRootDAO file ?

I would like to know the cleanest way to do that.

The SessionFactory rather than the Session should be closed (Factory will close all connections to the database etc) you must be able to get to the factory in some way since the factory creates the Sessions.

Thank you.