"gavin.king(a)jboss.com" wrote : Well, thats a FAQ. JSF validators cannot validate null values. So @NotNull is ignored. You need to use required=true for that. Then you can use Hibernate Validator annotations for validating the entered value. Right, I remember reading about that bit, JSF won't validate anything unless you specify required=true. Thanks Gavin. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4058391#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...