RFR: 8219804 ava/net/MulticastSocket/Promiscuous.java fails intermittently due to NumberFormatException

[Daniel Fuchs]

Hi Michael,

Thanks for doing that. IT should make this test much more stable.

On 21/06/2019 17:27, Michael McMahon wrote:
>> There is a nio test, java/nio/channels/DatagramChannel/Promiscuous.java
>> that follows a similar pattern. Should it be updated in a similar way?
>>
> I notice that test uses a "reserved" multicast address, which applications
> are not supposed to use. Maybe, routers won't forward those packets either.
> I think I'd prefer to leave that test as it is, for now, especially 
> seeing as it
> hasn't failed.

Related question:

java/net/MulticastSocket/Test.java uses "224.80.80.80".
Could that be changed as well without affecting the semantic of
the test?

I have been trying to find out how to fix this test so that it
pass on Mac. I was almost happy to have succeeded until I
tried when under a VPN, where the IPv4 test started failing :-(
I am wondering if using one of those unassigned addresses
instead of what we currently have could be considered?

> Updated at:
> http://cr.openjdk.java.net/~michaelm/8219804/webrev.2/

Looks good to me as well...

best regards,

-- daniel

> 
> Thanks,
> Michael.