Phew - and again I am deep into the foreign land of JSF internals. Any idea what could have caused this? I see that in MyFaces ApplicationImpl.createValueBinding(String) is hardcoded to return an instance of org.apache.myfaces.el.ValueBindingImpl Is this already incorrect? Or should the correct implementation be selected when valueBinding.getValue(FacesContext) is called? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4089636#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...