@EventHandler
public void onJoin ( final PlayerJoinEvent event ) {
    //Delay the update by a few ticks until the player is actually on the server
    Bukkit. getScheduler ( ). runTaskLater ( this, new Runnable ( ) {
        @Override
        public void run ( ) {
            //Set the event's player glowing in DARK_AQUA for all online players
            GlowAPI. setGlowing (event. getPlayer ( ), GlowAPI. Color. DARK_AQUA, Bukkit. getOnlinePlayers ( ) ) ;
        }
    }, 10 ) ;
}