Hello, Thanks for your answer. anonymous wrote : you should not convert the id to a string. if i do not convert, i get a class cast exception. This is due to this codefragment from getInstance return (Serializable) idConverter.getAsObject( | facesContext, | facesContext.getViewRoot(), | >>>> (String) id <<<<<<<<< | ); | But i have solved my problem. The component does not exist when i do not use it in an html page. So i have to use create=true :-) when i inject the component. Ciao, Carsten View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3964251#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...