public Duration checkMealDurationAccordingToRules(Duration lunchBreak) {
public Duration checkMealDurationAccordingToRules(Duration lunchBreak, boolean justification) {
    public Duration checkMealDurationAccordingToRules(Duration lunchBreak) {        if (definedMeal()) {            if (lunchBreak.isShorterThan(getMeal().getMinimumMealBreakInterval())) {                return null;            } else {                return ((Meal) getMeal()).calculateMealDiscount(lunchBreak);            }        }        return Duration.ZERO;    }