git: openjdk/jdk11u-dev: 8233989: Create an IPv4 version of java/net/MulticastSocket/SetLoopbackMode.java

[Zhengyu Gu]

Changeset: 881100f6
Author:    Zhengyu Gu <zgu at openjdk.org>
Date:      2021-06-23 00:14:55 +0000
URL:       https://git.openjdk.java.net/jdk11u-dev/commit/881100f6ab0aaac0c3aae2c343fda230c0f5daf1

8233989: Create an IPv4 version of java/net/MulticastSocket/SetLoopbackMode.java

This fix adds an IPv4 version of test SetLoopbackMode.java that calls SetLoopbackMode in IPv4 only mode, and runs only if IPv4 is enabled.

Backport-of: 78accb56022aab9c013d7abb7187ebbd0c0d915a

! test/jdk/java/net/MulticastSocket/SetLoopbackMode.java
+ test/jdk/java/net/MulticastSocket/SetLoopbackModeIPv4.java