After changing the servlet mapping according to CptnKirk's instruction, The modified sample works well. You please try: | <filter-mapping> | <filter-name>Seam Redirect Filter</filter-name> | <url-pattern>/faces/*</url-pattern> | </filter-mapping> | and | <!-- Faces Servlet Mapping --> | <servlet-mapping> | <servlet-name>Faces Servlet</servlet-name> | <url-pattern>/faces/*</url-pattern> | </servlet-mapping> | I do not know why the program failed when using"/*" as the url-pattern. It can not work here either. It display the same error message as you reported. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3956845#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...