RFR: JDK-8054118 - java/net/ipv6tests/UdpTest.java failed intermittently

[Mark Sheppard]

Hi,
   please oblige and review the following fix
http://cr.openjdk.java.net/~msheppar/8054118/webrev/

to address the issue raised in
https://bugs.openjdk.java.net/browse/JDK-8054118

The Windows test environment has a Teredo interface.
This oscillates between being configured with IPv6 and not been configured.
The configured state is transient. When configured its IPv6 is retrieved as
first local ipv6 address. As such, it can happen that during the test the
interface is disabled, and the test will fail with the report Socket 
receive timeout.

This fix removes the Teredo interface from the testing scenario, so that 
a more stable interface
will be used.

regards
Mark