log.error("Ping.go(): " + e);
System.err.println("Ping.go(): " + e);
    public void go(String groupname) {        try {            channel.connect(groupname);            channel.down(Event.FIND_INITIAL_MBRS_EVT);        }        catch(Exception e) {            log.error("Ping.go(): " + e);            System.exit(1);        }    }