After looking throught the code in seam related to setting page parameters, I'm sure my problem is related to this line in pages.xml: <param name="entityId" value="#{accountHome.id}" | converter="java.lang.Integer" /> The converter in JSF is not java.lang.Integer, but javax.faces.Integer! The problem why I not noticed this is that Seam silently fail in creating the converter (without logging the error) and removing the parameter!!! It would be best if there is a logentry (maybe only at debug level) if the converter creation fails! :( View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4058024#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...