8207404: MulticastSocket tests failing on Aix

[Volker Simonis]

I think the difference is in setMulticastInterface() in
PlainDatagramSocketImpl.c

#ifdef __linux__
        mcast_set_if_by_if_v4(env, this, fd, value);
        if (ipv6_available()) {
            if ((*env)->ExceptionCheck(env)){
                (*env)->ExceptionClear(env);
            }
            mcast_set_if_by_if_v6(env, this, fd, value);
        }
#else  /* __linux__ not defined */
        if (ipv6_available()) {
            mcast_set_if_by_if_v6(env, this, fd, value);
        } else {
            mcast_set_if_by_if_v4(env, this, fd, value);
        }
#endif  /* __linux__ */

We should probably follow the Linux way for AIX as well.

On Fri, Jan 11, 2019 at 5:29 PM Chris Hegarty <chris.hegarty at oracle.com> wrote:
>
>
> On 09/01/2019 15:20, Steve Groeger wrote:
> >...
> >
> > I think I have an Linux system setup with a simarly configured interface
> > (system has IPv6 configured but interface
> > has no IPv6/INET6 address configured) but the test works fine when run
> > on that system.
>
> This is what I observe too. Confirmed by looking at the test
> output in the jtr file.
>
> > This was why I was asking the question on whether this should work on
> > AIX, or whether it should fail on Linux!!!
>
> I suspect that this is an issue with the native setsockopt
> on AIX. That said, if it cannot be resolved on AIX, then
> maybe the networking native code on AIX, should workaround
> it.
>
> -Chris.