Ubuntu 10.04 getting java 6 update 29 back?

[okppko]

Ubuntu 10.04 lts updated sun java to java 6 update 30.
Do you know how to get java 6 update 29 back?
Thank you.

 

[bmouring]

Did you install it through apt or manually?

 

[okppko]

Did you install it through apt or manually?

Thank you for answering.
Since I wrote the message, I have gained new pieces of information. I read this homepage https://wiki.ubuntu.com/LucidLynx/ReleaseNotes/Java6Transition and installed openjdk.
What I have tested works, but some say not all features are supported by openjdk.