On Thu, 29 Feb 2024 09:34:05 GMT, Prasanta Sadhukhan <psadhuk...@openjdk.org> wrote:
> Test failed with the exception java.lang.IllegalArgumentException: (start <= > value <= end) with no history of failing till date. > Investigation shows SpinnerDateModel constructor condition is not satisfied > because > It seems it's a leap year problem that is being manifested.. > > As per test, > initDate Thu Feb 29 13:49:08 IST 2024 [ obtained by calendar.getTime();] > earliestDate Tue Feb 28 13:49:08 IST 2023 [obtained by > calendar.add(Calendar.YEAR, -1);] > latestDate Wed Feb 28 13:49:08 IST 2024 [obtained by > calendar.add(Calendar.YEAR, 1);] > > Now, as per SpinnerDateModel constructor > earliestDate <= initDate condition is satisfied > but > latestDate >= initDate is not > so [start <= value <= > end](https://github.com/openjdk/jdk/blob/998d0baab0fd051c38d9fd6021628eb863b80554/src/java.desktop/share/classes/javax/swing/SpinnerDateModel.java#L185) > condition fails > > Not sure it anything can be done in Calendar class for this but fix is done > in test taking leapyear into account so that we add a day if it's a leapyear > when we consecutively do Calendar.add(YEAR, -1) and Calendar.add(YEAR,1) on > leapyear date of 29Feb The problem comes down to this % cat LeapDayBug.java import java.util.Calendar; public class LeapDayBug { public static void main(String[] args) { Calendar calendar = Calendar.getInstance(); calendar.set(2024, 1, 29); System.out.println(calendar.getTime()); calendar.add(Calendar.YEAR, -1); calendar.add(Calendar.YEAR, 1); System.out.println(calendar.getTime()); } } % java LeapDayBug.java Thu Feb 29 12:27:46 PST 2024 Wed Feb 28 12:27:46 PST 2024 So I'm not sure what the Calendar class could do about this since both the -1 and the + 1 are correct considered standalone, but it just is not round trippable. ------------- PR Comment: https://git.openjdk.org/jdk/pull/18054#issuecomment-1971906144
