Just wondering what could be wrong. Some suggestions: - Try a simple <h:dataTable>, maybe the error is throw by tr:dataTable component. - This sounds silly, but tr:dataTable id="addresses" and value="${addresses}" could be causing some troubles? Try putting another id to the table (this shame me, but it is what I'll try because I don't know Trinidad). If anything works, I agree with you this is really weird. HTH. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4033368#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...