RFR [9] 8177536: Avoid Apple Peer-to-Peer interfaces in networking tests

[Roger Riggs]

Hi Chris,

Looks good, nice use of streams.

B6558853.java: 28:  an extra "*"

A few tests do nothing unless an interface is found; they could use 
either output that says what
interface is tested or a message that no interface was available.
(In case someone is reviewing the logs and wants to know what was tested).

Roger



On 4/12/2017 9:56 AM, Chris Hegarty wrote:
> This is a tests only change.
>
> Several networking tests appear to fail intermittently on recent
> Mac machines. In most cases an Apple Peer-to-Peer, awdl0,
> interface, has been seen to be chosen by the test, for some
> operation or other, when enumerating the set of network
> interfaces on the machine. Such an interface may not be
> suitable to perform the operation required by the test, and
> thus best avoided.
>
> http://cr.openjdk.java.net/~chegar/8177536.00/ 
> <http://cr.openjdk.java.net/%7Echegar/8177536.00/>
>
> This change attempts to create a NetworkConfiguration utility
> class that can be expanded on to centralize the logic for most
> networking related tests. For now, I’ve done the minimum
> possible here to get the tests back to a reasonable shape, but
> I expect that we can do further clean up and consolidation in the
> future.
>
> -Chris.