RFR: JDK-8280498: [aix]: jdk/java/net/Inet4Address/PingThis.java fails

[Daniel Fuchs]

On Fri, 28 Jan 2022 15:11:04 GMT, Michael McMahon <michaelm at openjdk.org> wrote:

>>> Or is it possible to change the implementation on AIX so the test passes without change?
>> 
>> * Digging into the java guts to map "0.0.0.0" to "127.0.0.1" seems too far to me - as I believe interfaces are not suppossed to be "translating" as well.
>> * If the behavior "0.0.0.0" becomes "127.0.0.1" is an official standard - a bug needs to be filed with IBM (which I cannot do) - but we need to also be aware that any fix to AIX is not likely to ever be applied on AIX 7.1 TL4 (maybe TL5) which are systems used to build distributions.
>> * Again - being a noob (or fresh face; fresh meat) the test title is merely "PingThis" - where is "This" defined as "0.0.0.0" (if it had been named _PingHERE_ I could understand as the alias, iirc, for 0.0.0.0 is "Here".
>
> Might be better to skip the test then by adding to the header:
> 
>  * 
>  * @requires os.family != "aix"
>  * 
> rather than the check in the test source

>From the description and evaluation of  [JDK-7163874](https://bugs.openjdk.java.net/browse/JDK-7163874) it seems that skipping this test on AIX would be reasonable.

Some operating systems seem to accept 0.0.0.0 as input - and reply with 127.0.0.1. The changes made for  JDK-7163874 simply makes sure that such a reply is not rejected as invalid on the ground that the received address is not the same as the input address. If 0.0.0.0 is not a valid input for the underlying operating system, then the test has no object and should probably be skipped.

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PR: https://git.openjdk.java.net/jdk/pull/7013