@IfInvalid is deprecated, with the notation that it's very broken and can't be fixed. I don't understand what that means but I'll take the Seam team's word for it. Anyway, so it looks like the replacement is to use the <s:validateAll> tag around all the elements in the form that are to be validated. I did this, and when the form is OK, everything works fine, but when the form is not OK, I get an exception. It should just redisplay the form with error messages, instead of throwing the org.hibernate.validator.InvalidStateException. I must be making some small mistake here. Any ideas? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3993757#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...