private JMethod addGetter(JDefinedClass jclass, JFieldVar field) {
    JMethod getter = jclass.method(JMod.PUBLIC, field.type(), "getAdditionalProperties");

    ruleFactory.getAnnotator().anyGetter(getter, jclass);

    getter.body()._return(JExpr._this().ref(field));
    return getter;
  }
private JMethod addGetter(JDefinedClass jclass, JFieldVar field)