Share Session between 2 Java EE applications deployed in JBoss AS

Question

I have 2 Java EE applications which need to share some common user related data of a logged in user.

Is there anyway by which I can store this data in the session from

Answer 1

Single sign-on is the way to go (as prescribed). OpenId http://en.wikipedia.org/wiki/OpenID (Providers include Google, Yahoo, MSN etc) is worth a look