code: protected void reportFailure (Exception cause)
      {
          for (int ii = 0, ll = _listeners.size(); ii < ll; ii++) {
              ClientResolutionListener crl = _listeners.get(ii);
              try {
                  crl.resolutionFailed(_username, cause);
              } catch (Exception e) {
                  log.warning("Client resolution listener choked in resolutionFailed()", "crl", crl,
                              "username", _username, "cause", cause, e);
              }
          }
      }
docs: Reports failure to our resolution listeners.