Thank you for the hint. To Continent.java, I added | public boolean equals(Object obj) { | if(obj != null) { | return (this.name == ((Continent)obj).getName()); | } | else return false; | } | | public int hashCode() { | return this.name.hashCode(); | } | and it works! To get the continent set and the country rerenderd with invalid input elsewhere - e.g., empty "Roles" - I had to surround the continent block with <a:region>. Maybe an extended Seam example for this functionality could be useful for other users. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4121319#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...