This is the scenario. I have a page with a richfaces commandbutton which haves in the action attribute a pageflow transition (defined in jpdl) that stays in the same page (there is a condition that for testing purposes always return false, which means to stay in the page). The expected behavior is to re render the faces messages. In any case, the page gets fully re rendered, in other words, no ajax re render. But If I put in the action parameter a method binding, that returns null (or a void method) the page doesn't get re rendered and works as expected. I am doing something wrong? I think that something with the PhaseListeners or something else is working wrong. Any help will be appreciated. Regards Sebastian View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4096230#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...