I am trying to integrate ICEFaces in my Mojarra 2.0.1 facelets application in order to have a better performance in rendering the DOM tree after ajax request. I followed the following steps: 1) Added the icefaces.jar to my war 2) Added the ...mypage Now I am getting after a click on one h:commandButton a 404 error on this "send-updated-views-icefaces.jsf" page ...