@Test public void testIsEmptyWithoutValues() { assertTrue(new DayTimeValue().isEmpty()); }
boolean isEmpty() { return dayTimeValues().allMatch(this::isNone); }
DayTimeValue { boolean isEmpty() { return dayTimeValues().allMatch(this::isNone); } }
DayTimeValue { boolean isEmpty() { return dayTimeValues().allMatch(this::isNone); } DayTimeValue();   DayTimeValue(final Integer days,
                 final Integer hours,
                 final Integer minutes,
                 final Integer seconds); }
DayTimeValue { boolean isEmpty() { return dayTimeValues().allMatch(this::isNone); } DayTimeValue();   DayTimeValue(final Integer days,
                 final Integer hours,
                 final Integer minutes,
                 final Integer seconds);  }
DayTimeValue { boolean isEmpty() { return dayTimeValues().allMatch(this::isNone); } DayTimeValue();   DayTimeValue(final Integer days,
                 final Integer hours,
                 final Integer minutes,
                 final Integer seconds);   }