I read about the sun changes but can't seem to get java working again

I removed all java and installed icetea which does work on some sites and java test sites, but lacks function and compatibility with many other sites

Oanda charts being a major one that I really need to use

How to re-install java plugin

Will an update or re-install of the latest ubuntu solve this or is this the same topic on all linux now ?

Please advise
Thanks