I displayed the score to console on hardConstraintsBroken rule. rule "hardConstraintsBroken" dialect "java" salience -1 // Do the other rules first (optional, for performance) when $sd : ServiceRequest( $object : object ); $hardTotal : Number() from accumulate ( IntConstraintOccurrence( $weight : weight ), sum( $weight ) ); then System.out.println( $object.getId() + " : " + (- $hardTotal.intValue()) ); scoreHolder.setScore(- $hardTotal.intValue() ); end I found that the getBestSolution() did not return the correct best solution based on console output. For example, in console output Problem Entity: O00010440201002 O00010440201003 O00010440201004 O00010440201009 O00010440201010 O00010440201011 Object: O00010440201002 : -5 Object: O00010440201002 : -5 Object: O00010440201010 : -4 Object: O00010440201003 : -5 Object: O00010440201004 : -5 Object: O00010440201011 : -4 Object: O00010440201009 : -1 Object: O00010440201004 : -5 Object: O00010440201010 : -4 Object: O00010440201002 : -5 Object: O00010440201003 : -5 Object: O00010440201011 : -4 Object: O00010440201002 : -5 Object: O00010440201003 : -5 Object: O00010440201004 : -5 Object: O00010440201009 : -1 Object: O00010440201011 : -4 Object: O00010440201003 : -5 Object: O00010440201011 : -4 Object: O00010440201004 : -5 Best Solution return by Solver O00010440201011 : -1 My expectation O00010440201009 : -1 Previous implementation in 5.3.0 doesn't have this problem. Can explain where I might do wrongly? -- View this message in context: http://drools.46999.n3.nabble.com/getBestSolution-not-returning-the-corre... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

2. Question about the cloneSolution. I have 3 properties in my Solution implementation. ArrayList<Material> materials; // Problem Facts ArrayList<ServiceRequest> serviceRequests; // Planning Entities SimpleScore score; In example, I noticed that Planning Entity is cloned but Problem Facts is not cloned. Why problem facts not cloned?