RFR: 8308807: [AIX] MulticastSocket and jdp test fails due to joinGroup

[Alan Bateman]

On Mon, 12 Jun 2023 08:57:19 GMT, Christoph Langer <clanger at openjdk.org> wrote:

> Well, in that area we always had deviations on AIX, so definitely this rings a bell. However, since AIX was not the most important platform for us and that particular IPv6/IPv4 multicast feature didn't seem to be mission critical and wouldn't fail TCK tests, we rather resorted to excluding some tests internally, I believe. But it would be good to really resolve this compatibility/spec/documentation issue, if possible.

Thanks. So yes, if some/all of the tests for multicasting were excluded then it helps explain why it didn't come up. The spec doesn't require that a DatgaramChannel or DatagramChannel to an IPv6 socket be capable of joining an IPv4 multicast group. So the tests in several areas might need as I don't think we've had a platform to date where it wasn't possible.

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PR Comment: https://git.openjdk.org/jdk/pull/14142#issuecomment-1587110996