hg: jdk/sandbox: unixdomainchannels: Add test ProtocolFamilies

[julia.boes at oracle.com]

Changeset: 01b730e34622
Author:    jboes
Date:      2020-02-07 16:20 +0000
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/01b730e34622

unixdomainchannels: Add test ProtocolFamilies

! test/jdk/java/nio/channels/unixdomain/IOExchanges.java
! test/jdk/java/nio/channels/unixdomain/LengthTest.java
+ test/jdk/java/nio/channels/unixdomain/ProtocolFamilies.java