[11u] RFR: 8223638: Replace wildcard address with loopback or local host in tests - part 6

[Lindenmaier, Goetz]

Hi,

I would like to downport this because a later 11.0.7-oracle change
Applies clean with this.
I had to do a simple resolve due to context in UnreferencedSockets.java

http://cr.openjdk.java.net/~goetz/wr19/8223638-replace_wildcard_6-jdk11/01/
https://bugs.openjdk.java.net/browse/JDK-8223638
http://hg.openjdk.java.net/jdk/jdk/rev/43439afaab4a

Best regards,
  Goetz.