I just filed bug http://jira.jboss.com/jira/browse/JBIDE-1369 in JIRA. When u press "Seam Generate Entities" and create them from existing entities the resulting CRUD pages will have fields annotated with @Version editable. I think this is a bug because. IMHO @Version fields should not be editable. In the entity the set accessor for @Version is declared private and thus throwing an error in the editor anyways.