@Override
  public String toString() {
    if (listeners.isEmpty()) {
      return "Inactive HttpServer";
    } else {
      StringBuilder sb = new StringBuilder("HttpServer (")
        .append(isAlive() ? STATE_DESCRIPTION_ALIVE : STATE_DESCRIPTION_NOT_LIVE)
        .append("), listening at:");
      for (ListenerInfo li : listeners) {
        ServerConnector l = li.listener;
        sb.append(l.getHost()).append(":").append(l.getPort()).append("/,");
      }
      return sb.toString();
    }
  }
Return the host and port of the HttpServer, if live
@return the classname and any HTTP URL
hbase-http/src/main/java/org/apache/hadoop/hbase/http/HttpServer.java