Arraylist Help

I just made a simple kit plugin with cooldowns however everytime a player relogs, he can use the kit again. What am I doing wrong in the arraylist or the scheduled delay task?

Code:

Bukkit.getServer().getScheduler().scheduleSyncDelayedTask(this, new Runnable(){
 
            @Override
            public void run() {
                cooldown.remove(player);
         
             
            }
           
          }, 864000);

 

You should not be storing the actual player.. This is a perfect situation to cause memory leaks. You should be storing their name instead, it should fix your relogging issue.

 

Player objects are unique per session/server/etc. player.getName() is a safe way to go.

 

Thank you helped a lot!