Set PAPI

Hi, How would you set placeholder api in a List<String> taken from the config and with the parameter ChatColor.translatealternatecolorcodes?
Because i have tryied a lot of times How to do it, and it never changes the variable, for example %player_name%

I need to do it in scoreboards and in messages

 

Yes of course, please wait a moment....

 

Do you mean looping the list? I mean with a for(String s : list) {}

 

ok, i have this code:

Code (Java):

public void alEntrar(PlayerJoinEvent event) {
        Player jugador = event.getPlayer();
        FileConfiguration config = plugin.getConfig();
        FileConfiguration messages = plugin.getMessages();
        String prefix = messages.getString("Messages.prefix");
        if(jugador.hasPermission("tplobby.joinmessage")){
            for(Player p : plugin.getServer().getOnlinePlayers()) {
                PlaceholderAPI.setPlaceholders(p, messages.getString("Messages.join-message"));
                p.sendMessage(ChatColor.translateAlternateColorCodes('&', messages.getString("Messages.join-message")));
            }
        }
}

and my config yml is

Code (YAML):

Config:
 #PAPI is available in this path
  join-message: "&aPlayer %luckperms_prefix% &5&l%player_name% &ahas joined the lobby"

and PAPI are not getting replaced...