A few days ago I wrote:
The www.sun.com site will be decommissioned on June 1 of this year.
In the comments I went on to say that I doubted there would be 1:1 redirects.
I was wrong. (Don't tell my wife I'm capable of saying that!) The www.sun.com domain will NOT be decommissioned or sold on June 1 of this year. Rather, sun.com URLs will redirect to oracle.com URLs, with 1:1 redirects where possible.
Our engineering team is working on a solution for the Hardware Compatibility List. I'll let you know where it ends up and in what form as soon as I know.
If you find content on those legacy sites that you'd like to ensure we make available on OTN, please let me know.