covariant returns for CharBuffer.subSequence

[Alan Bateman]

Martin Buchholz wrote:
> Hi Buffer Buddies,
>
> My changes for CharSequence are both easier and
> less controversial than changes for Buffer.mark,flip,clear.
> All one has to do in my proposal is change return types.
>
> For Buffer methods, on the other hand, one has to
> copy/paste/modify javadoc from Buffer into its subclasses,
> and more importantly, remove the "final" modifier on
> Buffer's methods, which is a noticeable incompatibility,
> that might perhaps have security or performance implications.
> So I am declining the invitation to work on those.
> The covariant CharSequence change can stand on its own.
>   
Okay. I've created the following to track this:
  6733145:  (bf) CharBuffer.subSequence can be updated to take advantage 
of covariant returns

-Alan.