Erreur de conversion quand la valeur '1' est commise pour le modéle '#{fUInstance.roles}' : Exception: {2}. Sorry it's french, it seems that localization is somehow broken for this message, it's the only message I have in french when switching from fr to en. Anyway, it means something like : Conversion error when value '1' is set for model '#{fUInstance.roles}' : Exception: {2}. Can U point me the example you checked so I can search for differences in my configuration. David View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4108682#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...