ubuntu sun_jdk_1.6 安装
先加个源
sudo sh -c "echo deb http://archive.canonical.com/ubuntu maverick partner >> /etc/apt/sources.list"

更新下列表
sudo apt-get update

安装
sudo apt-get install sun-java6-jdk

查看当前jdk
update-java-alternatives -l

设置为sun
sudo update-java-alternatives -s java-6-sun