Running hardy heron and firefox 2.
I have installed and tried running java every way I could think of and it just wouldn't work. I looked everywhere on here without a fix.
On another web site I found this....

For java runtime env in firefox2 on 8.04 (Hardy) you need this symlink:

In terminal type:
cd /usr/lib/firefox/plugins

Then type:
sudo ln -s /usr/lib/jvm/java-6-sun-1.6.0.06/jre/plugin/i386/ns7/libjavaplugin_oji.so


This solved my problem and now everything (even pogo) works great.
I just thought I would share this in case anybody else is having the same problem.