public Boolean subTaskDateChecker(Date supTaskStartDate, Date supTaskEndDate, Date parentStartDate, Date parentEndDate) {
        Boolean result = true;
        if (supTaskStartDate.before(parentStartDate)
                || supTaskStartDate.after(parentEndDate)
                || supTaskStartDate.after(supTaskEndDate)
                || supTaskEndDate.after(parentEndDate)) {
            result = false;
        }
        return result;
    }