Removing Entry from a Scoreboard

I am having a lot of trouble removing an entry from a scoreboard. I am using Chinwe's Scroller class, and every time I call the .next() method it just appends a new line onto the scoreboard. Calling the scoreboard.resetScores() method does not work. Here is my code:

Code:text

 
public void update() {
        new BukkitRunnable() {
            @Override
            public void run() {
                if (ready) {
                    for (Entry<StringIntGroup, Scroller> entry : scrollers
                            .entrySet()) {
                        scoreboard.resetScores(entry.getKey().getString());
                        obj.getScore(entry.getValue().next()).setScore(
                                entry.getKey().getInteger());
                        entry.getValue();
                    }
                }
            }
        }.runTaskTimer(Core.i(), 0L, 5L);
    }
 

Is there another way to remove an entry?

 

Is it impossible? Am I doing something wrong?

 

SirFaizdat you seem to reset the score, which name has been stored in the key, and then you create a new score from the value. Next time that code is ran, is that String you acquired from the value, the in the key from the Map? Because that seems pretty unlikely to me.

 

Actually, what I think I'm trying to do is edit the key and value in the HashMap to equal the scroller.next() value. Whenever I do this, I get a ConcurrentModificationException.