RFR 8196298 Add null Reader and Writer with latest changes

[Alan Bateman]

On 05/03/2018 21:45, Patrick Reinhart wrote:
> I tried to incorporate all feedback I received so far and updated the webrev accordingly:
>
> http://cr.openjdk.java.net/~reinhapa/reviews/8196298/webrev.01 <http://cr.openjdk.java.net/~reinhapa/reviews/8196298/webrev.01>
>
I think this looks good now. I've added myself as a reviewer on the CSR 
so you should be able to finalize it.

-Alan