code: public void fireComparisonPerformed(Comparison comparison,
                                          ComparisonResult outcome) {
          fire(comparison, outcome, compListeners);
          if (outcome == ComparisonResult.EQUAL) {
              fire(comparison, outcome, matchListeners);
          } else {
              fire(comparison, outcome, diffListeners);
          }
      }
docs: Propagates the result of a comparision to all registered
  listeners.