RFR: 8230664: Fix TestInstanceKlassSize for PowerPC [v2]

[Martin Doerr]

On Thu, 1 Oct 2020 15:02:55 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

>>> I think this fix deserves a new JBS issue. It doesn't resolve the rounding problem described in JDK-8230664. It fixes
>>> an additional issue. The rounding problem may reoccur when other class layout changes are done.
>> 
>> Totally agreed. But, would you mind to create the ticket for me, please? Then, I change the commit header/message.
>> Thank you!!
>
>> I think this fix deserves a new JBS issue. It doesn't resolve the rounding problem described in JDK-8230664. It fixes
>> an additional issue. The rounding problem may reoccur when other class layout changes are done.
> 
> Does it still need to be problem listed due to this issue? I guess it may or may not be an issue based on the current
> size InstanceKlass, so probably best to keep in problem listed.

If these tests are currently passing with Jose's fix, I suggest to comment them out in the problem list with a note
that we may need to disable them again because of JDK-8230664. This way we can test the functionality Jose is fixing
until then. And we'll see when the issue comes up again.

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PR: https://git.openjdk.java.net/jdk/pull/358