Hi Gavin, i will change back to my own manager, if you have the opinion that my change does not make sense. IMHO, it can always happen that 'getInstance()' from the Manager is called when there is no Id in any context. This will result in an exception. But if there is no Id than there is no object. And this must not be an error. Ciao, Carsten View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3960090#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...