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  1. JDK
  2. JDK-4891536

JRE 1.4.1_02 fails to detect the default time-zone correctly

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • Icon: P4 P4
    • None
    • 1.4.1
    • core-libs



      Name: gm110360 Date: 07/16/2003


      FULL PRODUCT VERSION :
      java version "1.4.1_02"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_02-b06)
      Java HotSpot(TM) Client VM (build 1.4.1_02-b06, mixed mode)

      FULL OS VERSION :
      Windows 2000 SP3

      EXTRA RELEVANT SYSTEM CONFIGURATION :
      Locale = en_AU
      Time-Zone = (GMT + 10:00) Canberra, Melbourne, Sydney (with daylight savings enabled)

      A DESCRIPTION OF THE PROBLEM :
      I have scanned the forum and this seems to be a recurring problem since JRE 1.1. I have the time zone on my machine set to Australia/Sydney. After installing version 1.4.1_o2 of the JDK, I ran a simple java application which basically prints the results of the following line of code to the standard output:

      System.out.println(TimeZone.getDefault().toString());

      ---------------- EXPECTED RESULT-------------------------

      sun.util.calendar.ZoneInfo[id="Australia/Sydney",offset=36000000,dstSavings=3600000,useDaylight=true,transitions=142,lastRule=java.util.SimpleTimeZone[id=Australia/Sydney,offset=36000000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=2,startMonth=9,startDay=-1,startDayOfWeek=1,startTime=7200000,startTimeMode=1,endMode=2,endMonth=2,endDay=-1,endDayOfWeek=1,endTime=7200000,endTimeMode=1]]

      ------------- END EXPECTED RESULT ----------------------

      The result I got was:

      -------------- ACTUAL RESULT ----------------------------

      sun.util.calendar.ZoneInfo[id="GMT",offset=0,dstDavings=0,useDaylight=false,transitions=0,lastRule=null]

      -------------END ACTUAL RESULT --------------------------

      This is clearly incorrect. However, I discovered you can rectify the problem by changed the System time-zone to some other time-zone and then switch it back to Australia/Sydney.
      This seems to rectify the problem. However, this is not a preferable soultion. Is there any way to make the JRE correctly auto-detect the correct time-zone.

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      1) On a clean Windows 2000 with SP3 machine which has not had a previous version of the JDK installed, run the JDK 1.4.1_02 installer. Make sure you have your time-zone set to Australian/Sydney before installing.
      2) Once installed, create a simple class, and in the main function, add the following line of code:

      System.out.println(TimeZone.getDefault().toString());

      3) Run the application and note the output.
      4) To correct the problem change the system time-zone and then change it back to Australian/Sydney.
      5) Run the application again - the time-zone will now be correct.

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      sun.util.calendar.ZoneInfo[id="Australia/Sydney",offset=36000000,dstSavings=3600000,useDaylight=true,transitions=142,lastRule=java.util.SimpleTimeZone[id=Australia/Sydney,offset=36000000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=2,startMonth=9,startDay=-1,startDayOfWeek=1,startTime=7200000,startTimeMode=1,endMode=2,endMonth=2,endDay=-1,endDayOfWeek=1,endTime=7200000,endTimeMode=1]]
      ACTUAL -
      sun.util.calendar.ZoneInfo[id="GMT",offset=0,dstDavings=0,useDaylight=false,transitions=0,lastRule=null]


      REPRODUCIBILITY :
      This bug can be reproduced always.

      ---------- BEGIN SOURCE ----------

      import java.util.TimeZone;
      import java.util.Locale;

      public class tz
      {
          public static void main(String[] aArgs)
          {
              System.out.println(Locale.getDefault().toString());
              System.out.println(TimeZone.getDefault().toString());
          }
      }
      ---------- END SOURCE ----------

      CUSTOMER SUBMITTED WORKAROUND :
      Switch system time-zone, then switch back to Australian/Sydney.
      (Incident Review ID: 186300)
      ======================================================================

            okutsu Masayoshi Okutsu
            gmanwanisunw Girish Manwani (Inactive)
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