Name: dfC67450 Date: 06/03/98



java.util.GregorianCalendar.setGregorianChange(Date cutover) sets the same year and era
when cutover is Date(Long.MIN_VALUE) and Date(Long.MAX_VALUE)

Javadoc says about setGregorianCalendar

    To obtain a pure Julian calendar, set the change date to
    Date(Long.MAX_VALUE). To obtain a pure Gregorian calendar,
    set the change date to Date(Long.MIN_VALUE).

Here is the test demonstrating the bug:

-----------------Test.java------------------------
import java.util.*;

public class Test {
    public static void main (String args[]){
      GregorianCalendar calendar = new GregorianCalendar();

      calendar.setGregorianChange(new Date(Long.MIN_VALUE));
      Date date1 = calendar.getGregorianChange();

      calendar.setGregorianChange(new Date(Long.MAX_VALUE));
      Date date2 = calendar.getGregorianChange();

      calendar.setTime(date1);
      int year1 = calendar.get(Calendar.YEAR);
      int era1 = calendar.get(Calendar.ERA);

      calendar.setTime(date2);
      int year2 = calendar.get(Calendar.YEAR);
      int era2 = calendar.get(Calendar.ERA);

      if (year1 == year2 && era1 == era2) {
        System.out.println("test failed");
        System.out.println("cutover date is Date(Long.MIN_VALUE)");
        System.out.println(" cutover year: " + year1);
        System.out.println(" cutover era: " + era1);
        System.out.println("");
        System.out.println("cutover date is Date(Long.MAX_VALUE)");
        System.out.println(" cutover year: " + year2);
        System.out.println(" cutover era: " + era2);
      } else {
        System.out.println("test passed");
      }
    }
}
---------Output from the test---------------------
test failed
cutover date is Date(Long.MIN_VALUE)
  cutover year: 292269055
  cutover era: 0
 
cutover date is Date(Long.MAX_VALUE)
  cutover year: 292269055
  cutover era: 0
-------------------------------------------------

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