Does resource injection in Servlet Filters works with JBoss AS 4.0.5? I'm trying to inject an EntityManagerFactory in a authentication filter, but the reference isn't set via injection, and a NullPointerException occurs.

I can successfully get the required EntityManagerFactory via Initial Context (the resource surelly is available via jndi), but it's desirable this could be possible via @PersistenceUnit injection.

Thanx in advance,
Fábio.