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

[Chris Hegarty]

Daniel,

> On 13 Dec 2019, at 18:53, Daniel Fuchs <daniel.fuchs at oracle.com> wrote:
> 
> 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

LGTM.

-Chris.