Sorry, but I'm a bit confused. http://issues.jboss.org/browse/JBJCA-94 is still unresolved.
Yes, because development is still on-going. You are welcome to help out.
Could you please explain in which version is this feature available? In which AS version?
I'm currently targeting JBoss Application Server 7.0
Is there a backport for AS 4.2.3?
As always - backports are community tasks.