Exception throw question

So in the video we had this code which makes sense to me:

public void fill(int pezAmount){ int newAmount = pezCount + pezAmount; if(newAmount > MAX_PEZ){ throw new IllegalArgumentException("TOO MANY PEZ");

}
pezCount = newAmount;

}

However, in the coding challenge, shouldn't it also be :

if(newAmount > MAX_BARS){ throw new IllegalArgumentException("TOO MANY REQUESTED LAPS"); }

why is it "newAmount < MAX_BARS"? It doesn't make sense to me?

We want say for example 12 laps but we cant cause our battery is 8 so that condition is met false.

if I put 6 laps which meets the condition 6<8 it goes to exception???

Im confused

class GoKart {
  public static final int MAX_BARS = 8;
  private String color;
  private int barCount;
  private int lapsDriven;

  public GoKart(String color) {
    this.color = color;
  }

  public String getColor() {
    return color;
  }
  public void charge() {
    barCount = MAX_BARS;
  }

  public boolean isBatteryEmpty() {
    return barCount == 0;
  }

  public boolean isFullyCharged() {
    return MAX_BARS == barCount;
  }

  public void drive() {
    drive(1);
  }

  public void drive(int laps) {
    lapsDriven += laps;
    barCount -= laps;
  }
}