s:selectItems expects a List rather than a List. Take a look at the ui example for some sample usage. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4040368#4040368 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4040368