Hi I am trying to say that as in my drl file if username is null or blank I want to show a message in my jsp page that username can't be null. Regards Brajesh -- View this message in context: http://drools.46999.n3.nabble.com/jsp-java-and-drl-file-tp4017955p4017964.html Sent from the Drools: User forum mailing list archive at Nabble.com.