About the dead link:
You can report here and/or on the mail-list.
It all depends if the page has a maintainer. Or if someone reads it who knows how to fix it. => That is, it is probably possible to find another jdk, but it may take some work/knowledge to ensure it is compatible, or to adapt the rest of the article.
If there is no such person who knows, then it probably want be fixed.
The wiki is maintained by contributors.
If you know how to fix the article, then go ahead. The wiki allows anyone to edit it.