java tz updates

Hi, Apologies if this is a bit off-topic as it's specific only to java timezones. The latest 2010k updates for java are not (yet) freely available from Sun. ( http://www.oracle.com/technetwork/java/javase/tzdata-versions-138805.html ) I have not looked into it, but I assume if I pay I could get the update. For Linux there there is a package "tzdata-java" which updates /usr/share/javazi/ but this does not used by the Sun JDK. Anyone know is an alternative to updating the Sun JDK timezones? I can of course program something - cases like Egypt changing time for Ramadan are fairly rare. Thanks Al