Linux Oracle Java6

sudo apt-get purge sun-java

You need to do that if you want the Mozilla plugin to work without conflict with Java 7 for instance.

mkdir ~/src

cd ~/src
git clone https://github.com/flexiondotorg/oab-java6.git
cd ~/src/oab-java6
sudo ./oab-java.sh

Then when it's finished, install Java:

sudo apt-get install sun-java6-plugin sun-java6-jre sun-java6-bin sun-java6-jdk