Reinstall Sun java in Ubuntu

Read all about it here

or use these commands

• put the line
• deb http://www.duinsoft.nl/pkg debs all
• in the file /etc/apt/sources.list, either using Software Sources from your System Menu or by editing the file in an editor (as root)
• or:
• put this line in a file named (e.g.) duinsoft.list in the directory /etc/apt/sources.list.d
• import the gpg key with the command (all on one line)
• sudo apt-key adv --keyserver keys.gnupg.net --recv-keys 5CB26B26
• (the last gave an error on my system)
• enter the commands (two lines)
• sudo apt-get update
• sudo apt-get install update-sun-jre
• or use Synaptic to install the package
• installation of the Runtime Environment will follow automatically

A second solution is from these sources from Martin Wimpress:

You can update your system withhis unsupported packages from this untrusted PPA

by adding ppa:flexiondotorg/java to your system's Software Sources. (Read about installing)

It offers among others:

The PPA currently publishes Sun Java 6 1.6.0.30 for:

- Lucid i386/amd64

- Maverick i386/amd64

- Natty i386/amd64

- Oneiric i386/amd64

- Precise i386. However, amd64 is failing to build on Precise. Martin will try and fix this in due course.

To Sun Java 6 , previously instaled via packages, do the following.

sudo apt-add-repository ppa:flexiondotorg/java

sudo apt-get update

sudo apt-get dist-upgrade

To install Sun Java 6 JRE do the following:

sudo apt-add-repository ppa:flexiondotorg/java

sudo apt-get update

sudo apt-get install sun-java6-jre

To install Sun Java 6 browser plugin do the following:

sudo apt-add-repository ppa:flexiondotorg/java

sudo apt-get update

sudo apt-get install sun-java6-plugin

To install Sun Java 6 JDK do the following:

sudo apt-add-repository ppa:flexiondotorg/java

sudo apt-get update

sudo apt-get install sun-java6-jdk