return interval.toPeriod(PeriodType.weeks()).getWeeks();
return (interval.toPeriod(PeriodType.weeks()).getWeeks() + 1);
    public int numberOfWeeks() {        Interval interval = new Interval(startDate.toDateMidnight(), endDate.toDateMidnight());        return interval.toPeriod(PeriodType.weeks()).getWeeks();    }