git: openjdk/mobile: 8234148: DatagramSocket.setOption/getOption/supportedOption should support multicast options

[duke]

Changeset: 22e26b2a
Author:    Patrick Concannon <pconcannon at openjdk.org>
Date:      2019-12-09 14:25:37 +0000
URL:       https://git.openjdk.java.net/mobile/commit/22e26b2a

8234148: DatagramSocket.setOption/getOption/supportedOption should support multicast options

Fix adds multicast socket options to DatagramSocket

Reviewed-by: alanb, dfuchs, vtewari

! src/java.base/share/classes/java/net/AbstractPlainDatagramSocketImpl.java
! src/java.base/windows/classes/java/net/DualStackPlainDatagramSocketImpl.java
+ test/jdk/java/net/DatagramSocket/SupportedOptionsCheck.java
! test/jdk/java/net/SocketOption/SupportedOptionsSet.java