[RFR]: 8220575: Replace hardcoded 127.0.0.1 in URLs with new URI builder

[Arthur Eubanks]

> 1) test/jdk/java/net/ResponseCache/Test2.java
>
>     83         url = URIBuilder.newBuilder()
>     84             .scheme("http")
>     85             .loopback()
>     86             .port(port)
>     87             .path("/test/foo")
>     88             .toURLUnchecked();
>     89             System.out.println("URL: " + url);   <<<< here
>
>     Can you please remove the extra indentation on L89.
>
> 2) Can you please use the standard four-space indentation
>     in URIBuilder.
>
Done: http://cr.openjdk.java.net/~aeubanks/8220575/webrev.04/
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