drools-planner

I am making an application that uses Drools planner. The @ValueRangeFromSolutionProperty is supposed to refer to a property from another class ( NQueens in this case). From the JavaDocs for @ValueRangeFromSolutionProperty : propertyName The property name of which exists a getter on the Solution that returns a Collection. But I noticed an inconsistency : the annotator uses the property rowList from NQueens . But rowList (as opposed to RowList ) is a private variable (see snippets below). If it were supposed to infer a property by introspection (from it's getter and setter methods), shouldnt it

I have a problem in using Drools Planner (written in Java) in Scala. One of interfaces in Drools planner is declared as: public interface Score<S extends Score> extends Comparable<S> However another interface uses 'Score' as a raw type: public interface Solution { Score getScore(); Then I'd like to implement this interface in Scala: class MySolution extends Solution { def getScore: Score = ... And I get a compilation error: Scala compiler disallows writing just 'def getScore: Score'. When I try adding 'Score[_]' or 'Score[whatever]' compiler complains about type incompatibility. What should I