java incorrect timezone

Try in your app to get default timezone, or set timezone manually (commented line).

Little example of mine:

import java.text.DateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;

public class Main {
    public static void main(String[] args) {
        Locale locale = Locale.getDefault();
        TimeZone localTimeZone = TimeZone.getDefault(); 
        //TimeZone localTimeZone = TimeZone.getTimeZone("Australia/Sydney");
        DateFormat dateFormat = DateFormat.getDateTimeInstance(DateFormat.FULL, DateFormat.FULL, locale);
        dateFormat.setTimeZone(localTimeZone);
        Date rightNow = new Date();
        System.out.println(locale.toString() + ": " + dateFormat.format(rightNow));
    }
}

You should update your JRE/SDK, but TZUpdater may be sufficient.

Check information on the following link: http://techtavern.wordpress.com/2010/04/15/java-and-incorrect-timezone-on-windows-xp/
It shows, that there is a bug in JVM, causing reading incorrect default timezone from windows registry. There is no bug fix yet.

Ensure you set the timezone for the JVM when starting the application:

-Duser.timezone="Australia/Sydney"