When I click on an URL to the Oracle documentation library of forum posts from last year they usually don' t work. This is quite inconvenient and renders a lot of previously useful posts useless.
The above link however works with a small modification:
I think the issue started when Oracle decided to revamp its documentation library earlier this year or last year. Perhaps Oracle can modify existing posts to relink the content, or provide appropriate forwarding at their Web servers? That would be my idea to improve OTN content.