The info below was come from http://greekclaud.blogspot.com/2009/12/ubuntu-910-build-android-java-15.html
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1. edit /etc/apt/sources.list and add source link
deb http://tw.archive.ubuntu.com/ubuntu/ jaunty main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu/ jaunty main restricted universe multiverse
2.
sudo apt-get update & sudo apt-get install sun-java5-jdk
3.
sudo update-alternatives --config java
4.
sudo update-java-alternatives -s java-1.5.0-sun
5. remark the previous source line at file /etc/apt/sources.list
