JFC, Java Foundation Classes, those are client-side classes? You mean JSF as in Java Server Faces, right? If this is the case, the Sun Java System Application Server Platform Edition 8 FCS bundled with the new J2EE 1.4 SDK supports Java Server Faces. Check it out here.
I have been using JSF in WebSphere Application Server 5.1. I have developed JSF for both regular web and also for WebSphere Portal Server 5.1. I did this work about 6 months ago already. There is a Redbook out on using JSF in WebSphere. To develop code for WebSphere you need to have WSAD 5.1.2 or above. WSAD 5.1 was a beta implementation not meant for production.
Garth IBM Certified Enterprise Developer for WSAD 5.0 [ January 20, 2005: Message edited by: garth schneider ]