hg: jdk/sandbox: Merge

[michael.x.mcmahon at oracle.com]

Changeset: 2c2e24ca304b
Author:    michaelm
Date:      2020-04-21 17:52 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/2c2e24ca304b

Merge

! src/java.base/share/classes/sun/nio/ch/SelectorProviderImpl.java
! src/java.base/share/classes/sun/nio/ch/ServerSocketChannelImpl.java
! src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java