RFR: 8290981: Enable CDS for zero builds [v2]

[Ioi Lam]

On Tue, 16 Aug 2022 06:36:26 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>>> Do you know how much testing is done by the community with zero? We don't test it that much in our pipeline.
>> 
>> You could ask the Debian people (Adrian Glaubitz), IIRC they have test farms with broad platform support and use a lot of zero.
>
>> > Do you know how much testing is done by the community with zero? We don't test it that much in our pipeline.
>> 
>> You could ask the Debian people (Adrian Glaubitz), IIRC they have test farms with broad platform support and use a lot of zero.
> 
> Yes, Debian seems to rely on Zero for many arches that do not have Server ports. They discover the bugs sometimes, but I think it got much better once we started doing x86_64 Zero bootcycle tests for incoming Zero patches -- it shakes out a lot of simple bugs.

@shipilev Thanks for the code contribution and testing!
@tstuefe @magicus @erikj79 Thanks for the review.

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PR: https://git.openjdk.org/jdk/pull/9869