hg: jdk/sandbox: JDK-8230211-branch: avoid requiring a MulticastSocket delegate in DatagramSocket

[daniel.fuchs at oracle.com]

Changeset: 65b65461312c
Author:    dfuchs
Date:      2020-02-27 12:59 +0000
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/65b65461312c

JDK-8230211-branch: avoid requiring a MulticastSocket delegate in DatagramSocket

! src/java.base/share/classes/java/net/DatagramSocket.java
! src/java.base/share/classes/java/net/MulticastSocket.java