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  1. JDK
  2. JDK-7109480

(cal) GregorianCalendar sets date to different values on JRE1.6 and JRE1.7

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P4
    • Resolution: Cannot Reproduce
    • Affects Version/s: 7
    • Fix Version/s: None
    • Component/s: core-libs
    • Labels:

      Description

      FULL PRODUCT VERSION :
      Compiled using 1.6 or 1.7, Execution environment 1.6/1.7 JRE7 (JDK7u1)

      A DESCRIPTION OF THE PROBLEM :
      When I try to set a date on Calender object to a post Gregorian Calendar cutoff date, date with JRE6 jumps from Oct 5 1582 to Oct 17 1582 while that with JRE7 jumps from Oct 5 1582 to Oct 15 1582.

      Is behavior of 1.7 a bug fix or a regression? I could not find release notes talking about this change.

      REGRESSION. Last worked in version 7

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      import java.util.Calendar;
      import java.util.GregorianCalendar;
      import java.util.Locale;
      import java.util.TimeZone;

      public class getDateRepro {

      public static void main(String[] args) {

      long tm = 0;
              GregorianCalendar cal = new GregorianCalendar(TimeZone.getDefault(), Locale.US);
              cal.setLenient(true);
              cal.clear();
              
              for (int i = 577735; i<= 577738; i=i+1)
              {
                  cal.set(1, Calendar.JANUARY, 1 + i, 0, 0, 0);
                  cal.set(Calendar.MILLISECOND, 0);
                  tm = cal.getTimeInMillis();
                  java.sql.Date dt = new java.sql.Date(tm);
                  System.out.println("Days since base date " + i + ": " + tm + " *** " + dt.toString());
              }
      }
      }

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      // With JRE 6 Java EE 1.6
      // Days since base date 577735: -12219436800000 *** 1582-10-03
      // Days since base date 577736: -12219350400000 *** 1582-10-04
      // Days since base date 577737: -12219091200000 *** 1582-10-17
      // Days since base date 577738: -12219004800000 *** 1582-10-18

      ACTUAL -
      // With JRE 7 (Java EE 1.6 OR 1.7)
      // Days since base date 577735: -12219436800000 *** 1582-10-03
      // Days since base date 577736: -12219350400000 *** 1582-10-04
      // Days since base date 577737: -12219264000000 *** 1582-10-15
      // Days since base date 577738: -12219177600000 *** 1582-10-16


      REPRODUCIBILITY :
      This bug can be reproduced always.

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              • Assignee:
                okutsu Masayoshi Okutsu
                Reporter:
                webbuggrp Webbug Group
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