GG

    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {

        if (!(sender instanceof Player)) {
            sender.sendMessage("§Voce nao e Um player");
        }
        Player p = (Player)sender;
        if (args.length == 0) {
            p.sendMessage("§aUse/cs <Messagem>");
            return true;
        }else {
        String message = "";
        for (int i = 0; i < args.length; i++) {
            if (i == args.length - 1) {
                message = message + args[1];
            }else{
                message = message + args[i] + "";
            }
        }
        for (Player s : Bukkit.getOnlinePlayers()) {
            if(s.hasPermission("staffchat.usar")) {
                s.sendMessage("§a|staffChat|§c" + p.getName() + "§6" + message.replace("&","§"));
            }
        }
        return true;
    }
}