Re: [rules-users] rule parse error for null check

Hi, I'm using drools-5.3.0.Beta1. I've following rule file: import java.util.*; declare Student name : String @key subjectGradeMap : HashMap end rule "Subject grade points" dialect "mvel" when $u : Student() then if($u.subjectGradeMap == null) { $u.subjectGradeMap = new HashMap<String,Integer>(); } $u.subjectGradeMap["CompSc"] += 100; System.out.println("Marks added"); end I get following error while rule compilation: Unable to Analyse Expression if($u.subjectGradeMap == null); { $u.subjectGradeMap = new HashMap<String,Integer>(); }; $u.subjectGradeMap["CompSc"] += 100; System.out.println("Marks added");: [Error: was expecting type: java.lang.Object; but found type: <Unknown>] [Near : {... if($u.subjectGradeMap == null) ....}] ^ [Line: 1, Column: 1] : [Rule name='Subject grade points'] Please let me know if this is correct usage in the above scenario. Thanks, Neel _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users