RFR: 8345505: Fix -Wzero-as-null-pointer-constant warnings in zero code

[Kim Barrett]

On Fri, 13 Dec 2024 04:33:17 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Please review this trivial change to remove some -Wzero-as-null-pointer-constant
>> warnings in zero code.  Just replaced two literal 0's with nullptr.
>> 
>> Testing: mach5 tier1, GHA sanity tests
>
> Looks good and trivial.
> 
> Thanks

Thanks for the review @dholmes-ora

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PR Comment: https://git.openjdk.org/jdk/pull/22728#issuecomment-2540545454