It's required if the DataModel has been outjected to PAGE scope (as the component is event scoped but the datamodel isn't). I'll drastically reduce the requirement for the setter by only calling when we are using PAGE scope :) (n.b. previous to this change you would have got an IAE if you fall into the small group of programs who were doing this). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4078488#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...