ClassCastException - SimpleTimeZone

[Himadri Joshi]

Hi,

I am upgrading the JRE version from 1.3 to 1.5 and in the process of that I witness ClassCastException being thrwon by the following statement(statement 3)

  
GregorianCalendar currentTime = new GregorianCalendar();
TimeZone timeZone = currentTime.getTimeZone();
SimpleTimeZone timeZone =  (SimpleTimeZone)currentTime.getTimeZone();  

I am trying to assign the proper gmtoffset based on the current local timezone.
Some research on our end suggests that such casting is not supported in higher version of jre.

Could any one please suggest a workaround for this?

Thanks,
Himadri

[bart zagers]

You don't have to get the timeZone of the GregorianCalendar.
Just create your own and pass that to the calendar.

SimpleTimeZone timeZone =  new SimpleTimeZone(...);
...
GregorianCalendar currentTime = new GregorianCalendar(timeZone);

[Jesper de Jong]

Originally posted by Himadri Joshi:
Some research on our end suggests that such casting is not supported in higher version of jre.

That's because in Java 5, Calendar.getTimeZone() does not return a SimpleTimeZone object. Note that the API documentation just says that it returns a TimeZone. Which subclass of class TimeZone it actually returns is not specified, so you should not rely on it being a SimpleTimeZone.