docs: public final int compare(final Activation existing,
                               final Activation adding) {
          final int s1 = existing.getSalience();
          final int s2 = adding.getSalience();
  
          if ( s1 > s2 ) {
              return 1;
          } else if ( s1 < s2 ) {
              return -1;
          }
  
          return (int) (existing.getRule().getLoadOrder() - adding.getRule().getLoadOrder());
      }