hg: jdk/sandbox: Improve handling of async close during connect and other cleanups

[alan.bateman at oracle.com]

Changeset: c08d024d6bf9
Author:    alanb
Date:      2019-03-23 15:11 +0000
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/c08d024d6bf9

Improve handling of async close during connect and other cleanups

! src/java.base/share/classes/sun/nio/ch/NioSocketImpl.java
! src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java
! test/jdk/java/net/Socket/AsyncShutdown.java
! test/jdk/java/net/Socket/ConnectionReset.java
! test/jdk/java/net/Socket/Timeouts.java
! test/jdk/java/net/Socket/UdpSocket.java
! test/jdk/java/net/SocketImpl/SocketImplCombinations.java