For the page:

http://jdk.java.net/archive/

add links to:
- Features
- Release notes
- API Javadoc
- Tool & command reference

for each of the releases. All bar the release notes have release specific links that can be used. The release notes will need kept around with a release specific link as http://jdk.java.net/12/release-notes for example is/was used for the release notes for 12, 12.0.1 and 12.0.2