We encountered problem with integrating seam 2.0.0.GA and ICEFaces Facelets. It appears that ICEFaces relies on getVersion() method which on glassfish v2 platform returns null. More information in according jira case: http://jira.icefaces.org/browse/ICE-2405 How to overcome this problem and why is this fmethod not wokring properly? Any hopes for fixes?