I added the two missing variables, and I still get the same error :-( I also have some other issues in this form because of the nested form. Being new to this I don't quite know how to handle the subform. When I remove all facets except one I get behaviour that is ok - I can add things to the list displayed by typing in the box below and press "AddSpace" It is when I hit the "Add Space" when I get errors (using more than one facet). Any suggestions? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4016796#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...