[RFR] 8224645: Test java/nio/channels/DatagramChannel/BasicMulticastTests.java fails with NoSuchElementException

[Alan Bateman]

On 29/05/2019 08:28, Daniel Fuchs wrote:
>
> Would you prefer to throw AssertionError instead? It's also
> a possibility. Chris thought it might be "too strong".
It might be odd to have a test system configured without multicast 
enabled but it's not wrong. So I think the test should pass.

> :
>
> Right - printing interfaces before testing them would be useful.
> But printing all interfaces if no multicast was found is useful
> too - it might help figure out why the test was not run.
>
I think it would be useful for tests such as this one to print the 
network interface configuration at the start. That might be something 
for a supporting method in jdk.test.lib.NetworkConfiguration (if there 
isn't anything already).

-Alan