The following comments from a code review of Enum.java must be addressed
before we go out into beta.

> [44] This is still not a very good first sentence.
> [111] Missing "@param o", "@throws ClassCastException", "@returns"
> [121 - 122] There's a bug to track this comment right? We don't
> want to ship without this bug (and the javadoc) getting fixed.
> [130] Same comment/question as last. I don't think that you should call it
> a "prototype" after it goes back in to the workspace.
> [133] Missing "@param" tags, "@returns", "@throws IllegalArgumentException"
> (Of course they will not be necessary when the method is entirely
> removed.)
> [145] Missing "@throws InvalidObjectException".