Example link on How to Contribute page is broken
If you click How to contribute, the resulting page,
has a link to a sample contribution. This link is to:
but there is no such page. The actual page is found at:
Either the link in collaborate.html should be changed to point back to the page from the JDK 6 project, or a copy or new version of the example-contribution.html page should be added within the JDK 7 project.