docs: protected String getRemoteHostName(final String remoteIp) {
          val revDNS = new ReverseDNSRunnable(remoteIp);
          val t = new Thread(revDNS);
          t.start();
          try {
              t.join(this.timeout);
          } catch (final InterruptedException e) {
              LOGGER.debug("Threaded lookup failed.  Defaulting to IP [{}].", remoteIp, e);
          }
          val remoteHostName = revDNS.getHostName();
          LOGGER.debug("Found remote host name [{}].", remoteHostName);
          return StringUtils.isNotBlank(remoteHostName) ? remoteHostName : remoteIp;
      }