If you’re in the eastern states of Australia and have installed your OS patches (Win,Mac OS X 10.3.9, 10.4.x,10.4.x Server) for this year’s changes to daylight saving (thanks to the Commonwealth Games, daylight Savings stops next weekend rather than last weekend) and still can’t work out why your Java apps aren’t handling the time change correctly, you need to upgrade your version of Java. (This will also affect changes to the US’s daylight savings next year.) It definitely affects Windows, not sure if Mac OS X Java suffers the same fate.
Java has its own set of timezone information embedded in it. Yay.
Of course, being in WA I otherwise don’t care.