8218559: Reimplement the Legacy Socket API

[Alan Bateman]

On 09/05/2019 11:51, Michael McMahon wrote:
> Ok, thanks. A test that might be useful could be one that compares the 
> supported options between the old
> and new impls for both client and server sockets. I guess it shouldn't 
> be required for the initial push though.
>
There are several existing tests that will fail if there options missing 
but they might not catch the scenario where the new implementation 
supports additional option. I can add another test for that as it's easy.

-Alan