Removing OpenJDK JRE Ubuntu 10.10 EC2 amazon and install Sun Java 6 JRE JDK

Default java instalation Ubuntu in Amazon EC2 AMI is using java-1.6.0-openjdk. When you using SOLR, Tomcat 6 and Glassfish, sometimes you meet condition that need FULL of Sun java 6 JDK + JRE. So, i think, it's will be good point if we remove default Java instalation in Ubuntu 10.10 and using Sun Java 6 for investment. So, here are steps for removing it :

1. Update Ubuntu Repository
sudo add-apt-repository "deb http://archive.canonical.com/ maverick partner"
sudo apt-get update
sudo apt-get remove openjdk-6-jre-headless
sudo apt-get install sun-java6-jdk sun-java6-jre
sudo apt-get autoremove

2. Set what kind of Java we used in Ubuntu Linux
sudo update-alternatives --config java

You can pick up what kind of Java you need to use.