own.

I bound the Hibernate SessionFactory into JBoss JNDI as Bauer/King
adviced in their book 'Hibernate in Action', so I get a Hibernate
Session by doing a lookup for the SessionFactory.

If I understand the book from above, it says that Hibernate is smart
enough to detect if it is running in a managed environment, where
transactions are governed by a separate Transaction Manager (which,
btw, you have to configure in Hibernate's global configuration). So I
thought, that a statement which commits a Hibernate transaction,
simply does nothing, but 'waits' until the JBoss TX manager commits
the transaction.

Carlo Luib-Finetti