log.error("Failed to start the router " + "on port " + routerPort);
System.err.println("Failed to start the router " + "on port " + routerPort);
            public void run() {                try {                    new GossipRouter(routerPort).start();                    System.out.println("started GossipRouter on port " + routerPort);                }                catch(Exception e) {                    log.error("Failed to start the router " + "on port " + routerPort);                    e.printStackTrace();                }            }