code: public boolean bind ()
      {
          // open our TCP listening ports
          int successes = 0;
          for (int port : _ports) {
              try {
                  acceptConnections(port);
                  successes++;
              } catch (IOException ioe) {
                  log.warning("Failure listening to socket", "hostname", _bindHostname,
                              "port", port, ioe);
              }
          }
          return successes > 0;
      }
docs: Bind to the socket ports and return true if any of the binds succeeded.