docs: public void makeScoreHashMethod(CtClass scClass) {
      // Map of previously extracted PMML names, and their java equivs
      HashMap<String,String> vars = new HashMap<String,String>();
      StringBuilder sb = new StringBuilder();
      sb.append("double score( java.util.HashMap row ) {\n"+
                "  double score = "+_initialScore+";\n");
      try {
        for( int i=0; i<_rules.length; i++ )
          _rules[i].makeFeatureHashMethod(sb,vars,scClass);
        sb.append("  return score;\n}\n");
        CtMethod happyMethod = CtMethod.make(sb.toString(),scClass);
        scClass.addMethod(happyMethod);
      } catch( Exception re ) {
        Log.err(Sys.SCORM,"Crashing:"+sb.toString(), new RuntimeException(re));
      }
    }