player join text help

hey guys,
I'm trying to make a player join message so when they join they get a welcome message..
for some reason, this isn't working.

Code:

public void onPlayerJoin(PlayerJoinEvent event) {
            Player player = event.getPlayer();
            if(player.isOp()){
                player.sendMessage("Welcome OP to the server!");
            }
            else
            {
                player.sendMessage("Welcome to the server!");
            }
        }

anyone know why? It loads fine but when u get ingame ud ont get a message.

 

Try this:

Code:

public boolean onPlayerJoin(PlayerJoinEvent event) {
            Player player = event.getPlayer();
            if(player.isOp()){
                player.sendMessage("Welcome OP to the server!");
            }
            else
            {
                player.sendMessage("Welcome to the server!");
            }
        } return true;