hg: jdk/sandbox: Merge

[michael.x.mcmahon at oracle.com]

Changeset: 38716c591cd5
Author:    michaelm
Date:      2019-12-19 15:39 +0000
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/38716c591cd5

Merge

! src/java.base/share/classes/sun/nio/ch/Net.java
! src/java.base/unix/native/libnio/ch/Net.c
! src/java.base/windows/native/libnio/ch/Net.c