[HARMONY-5461] [classlib][util] wrong daylight savings are reported for "MST" and "EST" timezones after locale data unification - ASF JIRA

XML

Word

Printable

JSON

The following test passes on RI but fails on Harmony:
------------------------
import java.util.TimeZone;
import java.util.Date;

class TimeZoneIsDaylight {
static Date d = new Date(101, 7, 20);
static boolean isDaylight(String s)

{ return TimeZone.getTimeZone(s).inDaylightTime(d); }

static void checkDaylight(String s, boolean yes)

{ System.out.println(s + ": " + (isDaylight(s) == yes ? "PASSED" : "FAILED")); }

public static void main(String[] args)

{ System.out.println(d); checkDaylight("MST", true); checkDaylight("EST", true); }

}
------------------------

The difference is in start month of daylight savings. RI reports it to be March, 8th for both, we think it is April, 1st.

I'll attach the patch right now.