log.info("Invalid port or no port specified");
log.error("Invalid port or no port specified");
   public static void main(String[] args)   {      log.info("Slave starting");            int port;      try      {         port = Integer.parseInt(args[0]);      }      catch (Exception e)      {         log.info("Invalid port or no port specified");         return;      }            new Slave().run(port);   }