I have in the past worked with seam 2, and I am now trying to build my first app using seam 3. In the documentation they recommed picketlink for the authorization/authentication process. I was reading about the seam security module and JpaIdentityStore with picketlink and I still have some doubts about it. I would like to use a simple model that I already have which is user, role and user_Role.Is it possible to use this same simple model with seam 3 JpaIdentityStore? Or do I need to change my model to use the one presented in the documentation?