public boolean onCommand(CommandSender sender, Command command,String label, String[] args) {
                    if(label.equalsIgnoreCase("tpbungee")) {
                Player player = (Player) sender;
                            zmiana(p, "TU_WPISZ_NAZWE_SERWERA");
                    }
                    return false;
            }

        public void zmiana(Player player, String server)
        {
            ByteArrayDataOutput out = ByteStreams.newDataOutput();
            out.writeUTF("Connect");
            out.writeUTF(server);
            player.sendPluginMessage(this, "BungeeCord", out.toByteArray());
        }