(test-only) RFR: 8235925: java/net/Socket/HttpProxy.java fails on IPv4 only hosts and other small cleanups

[Daniel Fuchs]

Hi,

Please find below a fix for:

8235925: java/net/Socket/HttpProxy.java fails on IPv4 only hosts
          and other small cleanups
https://bugs.openjdk.java.net/browse/JDK-8235925

webrev:
http://cr.openjdk.java.net/~dfuchs/webrev_8235925/webrev.00/index.html



java/net/Socket/HttpProxy.java fails on IPv4 only hosts with:
SocketException: Protocol family unavailable

java/net/SocketOption/OptionsTest.java misses an @bug for JDK-8234083

java/net/NetworkInterface/NoSetNetworkInterface.java should be moved to 
java/net/MulticastSocket/

best regards,

-- daniel