I filed the 8220575 [1] that tracks "Correctly format test URI's that contain a retrieved IPv6 address"
Regarding fixing tests that incorrectly use IPv6 addresses in URL's or URI's, without enclosing the address within '[' and ']' ( square brackets ). These IPv6 addresses typically come from either of: 1) the InetAddress.getLoopbackAddress().getHostAddress(), or 2) InetAddress.getLocalHost().getHostAddress(). I think that is most cases it should be possible to just replace the use of `getHostAddress` with `getHostName`. This defers the actual lookup to the system configured name service ( rather than trying to encode IPv6 addresses in the test ). Also, URL's / URI's that hardcode "127.0.0.1", can ( in most cases ) just be replaced with InetAddress.getLoopbackAddress().getHostName(). I've followed the above advise on a few tests and it seems to be working out ok, so far. -Chris. [1] https://bugs.openjdk.java.net/browse/JDK-8220575
