Hi All, I believe that I have encountered two potential bugs (Expert), I am using Drools 5.1.1. It seems that they are related to namespaces and inner classes in particularly. I have a class with an internal inner class (enum): public class X { public enum State { INIT, DONE; } Private State state; } In the DRL file I would import the class X (e.g. import com.stub.X) And in the LHS of the rule I could state something like $x: X(X.State.INIT == state) As far as I understand this is a legal syntax, the problem is that I get the following exception: “Exception executing predicate X.State.INIT == state” I found that I can work around this by importing com.stub.X.State and changing the LHS rule to $x: X(State.INIT == state) This brings me to the second issue. If I have an additional class let’s say public class Y { public enum State { ALIVE, TERMINATED; } Private State state; } In this case importing both classes using the workaround above, hence: import com.stub.X.State import com.stub.Y.State result in an import collision with the State class so it is kind of a deadlock situation. I can always overcome this by changing the names of the inner classes (which is what I am currently doing) but I thought it would be helpful to state this. Perhaps this is not a bug but rather something I am doing wrong. Hezi _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev