JDK 10 RFR of 8184807: (ch) Clean up handling of some Windows function return values in libnio

[Alan Bateman]

On 18/07/2017 19:25, Brian Burkhalter wrote:
> Please review at your convenience:
>
> https://bugs.openjdk.java.net/browse/JDK-8184807
> http://cr.openjdk.java.net/~bpb/8184807/webrev.00/
>
> The return values of some Windows functions are incorrectly tested or not tested at all. This change would clean these up.
>
>
Looks good.