Name: avC70361 Date: 07/03/98



  java.util.SimpleTimeZone.hasSameRules(TimeZone) works wrong when compares
two SimpleTimeZone instances both without rules. It returns false when two
instances have been constructed with different values of rule fields, but
specifying that time zone has no rules. Zones constructed this way behave the
same whereas hasSameRules returns false.

Here is a test demonstrating the bug.
---------------HasSameRulesTest.java-----------
import java.util.SimpleTimeZone;

public class HasSameRulesTest {

  public static void main(String args[]) {
    SimpleTimeZone tz1 = new SimpleTimeZone(0, "stz", 0, 0, 0, 0, 2, 0, 0, 0);
    SimpleTimeZone tz2 = new SimpleTimeZone(0, "stz", 1, 0, 0, 0, 3, 0, 0, 0);

    if (!tz1.hasSameRules(tz2)) {
      System.out.println(
        "Failed: hasSameRules() returns false for zones without rules\nzone 1 = " + tz1 + "\nzone 2 = " + tz2
      );
    }
  }
}

---------The test output--------
> java HasSameRulesTest
Failed: hasSameRules() returns false for zones without rules
zone 1 = java.util.SimpleTimeZone[id=stz,offset=0,dstSavings=3600000,useDaylight=false,startYear=0,startMode=1,startMonth=0,startDay=0,startDayOfWeek=0,startTime=0,endMode=1,endMonth=2,endDay=0,endDayOfWeek=0,endTime=0]
zone 2 = java.util.SimpleTimeZone[id=stz,offset=0,dstSavings=3600000,useDaylight=false,startYear=0,startMode=1,startMonth=1,startDay=0,startDayOfWeek=0,startTime=0,endMode=1,endMonth=3,endDay=0,endDayOfWeek=0,endTime=0]

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