hg: jdk/submit: 8195059: Update java.net Socket and DatagramSocket implementations to use Cleaner

[roger.riggs at oracle.com]

Changeset: 7c12219870fd
Author:    rriggs
Date:      2018-02-02 14:17 -0500
URL:       http://hg.openjdk.java.net/jdk/submit/rev/7c12219870fd

8195059: Update java.net Socket and DatagramSocket implementations to use Cleaner
Reviewed-by: chegar, plevart

! make/mapfiles/libnet/mapfile-vers
! src/java.base/share/classes/java/net/AbstractPlainDatagramSocketImpl.java
! src/java.base/share/classes/java/net/AbstractPlainSocketImpl.java
! src/java.base/share/classes/java/net/ServerSocket.java
+ src/java.base/share/classes/java/net/SocketCleanable.java
! src/java.base/share/classes/jdk/internal/misc/JavaIOFileDescriptorAccess.java
! src/java.base/unix/classes/java/io/FileDescriptor.java
! src/java.base/unix/native/libnet/SocketImpl.c
! src/java.base/windows/classes/java/io/FileDescriptor.java
! src/java.base/windows/classes/java/net/TwoStacksPlainDatagramSocketImpl.java
! src/java.base/windows/native/libnet/SocketImpl.c
! test/jdk/java/net/DatagramSocket/SendSize.java
+ test/jdk/java/net/DatagramSocket/UnreferencedDatagramSockets.java
+ test/jdk/java/net/MulticastSocket/UnreferencedMulticastSockets.java
+ test/jdk/java/net/ServerSocket/UnreferencedSockets.java