a half answer: I behaved the same in 3.0.6... imho it's the "unknown" variables that get instantiated differently... but I did not investigate much further... suggestion: ignore - make your own rules behave better :-) Gernot > When I test the Golfer example in Drools4.0 environment. I found the rule > was matched twice but print same result. I try to override equals() and > hashCode() method in Golfer Object, but no change happen. Who can tell me > the reason that happened? > > > > Thanks. > > Jason Wang > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > >