RFR 4358774: Add null InputStream and OutputStream

[Alan Bateman]

On 11/01/2018 22:14, Brian Burkhalter wrote:
> Thanks. The final version is updated in place under webrev.03. Pushing the change is pending CSR-reapproval.
>
>
Looks okay to me. Just a minor nit in the first line of nullInputStream 
where the javadoc has "contains no bytes". I assume you mean to put 
"reads" rather than "contains".

-Alan