code: public boolean containsPropertySet(Class<? extends Annotation> propertySet)
      {
          if (_annotElem.isAnnotationPresent(propertySet))
              return true;
  
          //
          // Call up to superclass for delegation
          //
          return super.containsPropertySet(propertySet);
      }
docs: Returns true if the PropertyMap contains one or more values for the specified
  PropertySet, false otherwise