Is HungryMoneky an interface you have outside the DRL? Can you send me the full DRL anyway? Thanks Davide -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-Having-problems-with-traits-in-5-4-0beta2-tp3816181p3816923.html Sent from the Drools: User forum mailing list archive at Nabble.com.