Java 1.6 on Leopard (64 bits)
1. Get http://www.apple.com/support/downloads/javaformacosx105update1.html
2. for command in `ls /System/Library/Frameworks/JavaVM.framework/Versions/1.6/Commands`; do echo $command; sudo rm /usr/bin/$command; sudo ln -s /System/Library/Frameworks/JavaVM.framework/Versions/1.6/Commands/$command /usr/bin/$command; done
3. Enjoy!
