FULL PRODUCT VERSION :
1.6.0_22

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]


EXTRA RELEVANT SYSTEM CONFIGURATION :
Local time zone is :India

A DESCRIPTION OF THE PROBLEM :
java version "1.6.0_22"
Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
Java HotSpot(TM) Client VM (build 17.1-b03, mixed mode,sharing)

Set clock to "(UTC+04:00) Moscow, St. Petersburg, Volgograd"
in Date/Time Properties in Win7 operating system,
"Automaticaly adjust clock for daylight saving changes" - unchecked.
(I have MS Windows 2000 SP 1).

Now my machine is having "Europe/Moscow" timezone
According to GMT, Moscow having +4 offset.
But when i run the code then it shows offset +3 for Moscow.

ADDITIONAL REGRESSION INFORMATION:
java version "1.6.0_22"
Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
Java HotSpot(TM) Client VM (build 17.1-b03, mixed mode,sharing)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
First set your machine clock to "(UTC+04:00) Moscow, St. Petersburg, Volgograd" from Date/Time Properties in ControlPanel.
Secondly check your java version , it should be 1.6
Thirdly compile the code and execute it.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Default Time Zone ID - Europe/Moscow
Default Time Zone Offset - (4) hour.
ACTUAL -
Default Time Zone ID - Europe/Moscow
Default Time Zone Offset - (3) hour.

ERROR MESSAGES/STACK TRACES THAT OCCUR :
No error.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
/*
 * TestMoscowTimeZone.java
 *
 * Created on November 26 2013, 17:12
 */

import java.util.TimeZone;

/**
 *
 * @author ankit kumar
 */
public class TestMoscowTimeZone {
    
    /** Creates a new instance of TestDate */
    public TestMoscowTimeZone() {
    }
    
   
    public static void main(String[] args) {

    TimeZone tzone = TimeZone.getDefault();
    
    System.out.println("Default Time Zone ID - " + tzone.getID());
    System.out.println("Default Time Zone Offset - (" + tzone.getRawOffset()/60/60/1000 + ") hour.");
   
    }
    
}
---------- END SOURCE ----------