code: @Override
      public int compareTo(ObserverMethod o) {
          if (o == null) {
              return 1;
          }
          Integer a = getPresedence(getMethod());
          Integer b = getPresedence(o.getMethod());
          return b.compareTo(a);
      }
docs: /* (non-Javadoc)
  @see java.lang.Comparable#compareTo(java.lang.Object)