@Override
    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
        Player player = (Player) sender;

        if (cmd.getName().equalsIgnoreCase("UUID")) {
            try(Connection c = null; Statement statement = c.createStatement();){
                ResultSet result = statement.executeQuery("SELECT * FROM users WHERE player_UUID = '"+ ((Player) sender).getUniqueId().toString() + "'");
                result.next();
                sender.sendMessage(ChatColor.RED + "Your UUID is: " + result.getString("player_UUID"));
            }catch(Exception exception){
                exception.printStackTrace();
            }
        }
        return true;
    }