FULL PRODUCT VERSION :
j2re1.4.2_13

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
After introduction of Daylight Savings Time in Western Australia, I used the Timezone Updater Tool to update the timezones. I got incorrect results parsing and formatting times in this timezone.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Run the Timezone Updater Tool to make sure the latest timezones are available
2. Run Test code below for timezones Australia/Perth and compare running it for Australia/Melbourne

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Output:
Success
ACTUAL -
Output:
20071112020000 Coordinated Universal Time -> 20071112110000 Western Summer Time (Australia) in DST
20071112030000 Coordinated Universal Time
since epoch before: 1194832800000 since epoch after 1194836400000

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public void testSimple()
{
TimeZone tz = TimeZone.getTimeZone("Australia/Perth");
//TimeZone tz = TimeZone.getTimeZone("Australia/Melbourne");
TimeZone utcTZ = TimeZone.getTimeZone("UTC");
SimpleDateFormat f = new SimpleDateFormat("yyyyMMddHHmmss zzzz");
f.setTimeZone(tz);
String time = "20071112020000 Coordinated Universal Time";
SimpleDateFormat utcFormatter = new SimpleDateFormat("yyyyMMddHHmmss zzzz");
utcFormatter.setTimeZone(TimeZone.getTimeZone("UTC"));
String output;
Date date;
String dateS;
boolean inDST;
long sinceEpoch1;
long sinceEpoch2;
try {
output = time;
date = utcFormatter.parse(time);
sinceEpoch1 = date.getTime();
dateS = f.format(date);
output += " -> " + dateS;
inDST = tz.inDaylightTime(date);
if (!inDST) {
output += " not";
}
output +=" in DST";
date = f.parse(dateS);
sinceEpoch2 = date.getTime();
f.setTimeZone(utcTZ);
dateS = utcFormatter.format(date);
output += "\n" + dateS;
if (!dateS.equals(time)) {
output += "\nsince epoch before: " +
sinceEpoch1 + " since epoch after " +
sinceEpoch2;
System.out.println(output);
} else {
System.out.println("Success");
}
} catch (ParseException e) {
e.printStackTrace(System.err);
}
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Have not found a workaround.