public void testAdd_8ints2() {
        MutablePeriod test = new MutablePeriod(100L, PeriodType.yearMonthDayTime());
        try {
            test.add(1, 2, 3, 4, 5, 6, 7, 8);
            fail();
        } catch (IllegalArgumentException ex) {}
        assertEquals(0, test.getYears());
        assertEquals(0, test.getMonths());
        assertEquals(0, test.getWeeks());
        assertEquals(0, test.getDays());
        assertEquals(0, test.getHours());
        assertEquals(0, test.getMinutes());
        assertEquals(0, test.getSeconds());
        assertEquals(100, test.getMillis());
    }