tl;dr:"The moral of the story is that the best way to avoid bugs is to make them difficult to write. Ideally make bugs harder to write than correct code. defer and try-with-resources are “wrong by default” and require explicit work on behalf of the programmer to become correct."
tl;dr:"The recommendations are roughly in order of importance and have rationale for why they are that important." Kevin covers Formats, Content Type, Absolute URLs, Discovery. And more.