[ipv6] Regarding 8220673: Add test library support for determining platform IP support

[Alan Bateman]

On 08/05/2019 12:02, Chris Hegarty wrote:
> :
>>
>> New webrev: http://cr.openjdk.java.net/~aeubanks/8220673/webrev.03/
>
> :
>
> P.S. adding nio-dev since there are a few tests in that area
> being updated.
Thanks for forwarding.

IPSupports.skipIfConcurrentConfigurationIsInvalid is a bit strange and I 
think the first use of SkippedException in the jdk tests. I'm tempted to 
suggest this should be a key that tests should select on via the 
@requires tag but that may not be feasible because it depends on 
properties such as preferIPv4Stack. So I guess the approach is okay but 
we should rename the method to start with "skipTest" as it's not clear 
from the use-case what is being skipped. Also 
"ConcurrentConfigurationIsInvalid" is vague and I think it would be 
useful if the method description could emulate the conditions a bit 
better so that someone seeing a IPSupport.skipTestXXX knows what is means.

-Alan