RFR: 8299973: Replace NULL with nullptr in share/utilities/ [v3]

[Stefan Karlsson]

On Thu, 19 Jan 2023 09:29:10 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Johan Sjölen has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fix incorrect copyrights, reverts change in file that was only comment
>
> A few suggestions about nullptr -> null (only suggestions)
> 
> Some unchanged files need their copyrights restored.
> 
> The AIX changes need reverting.
> 
> Thanks.

FWIW, I agree with @dholmes-ora about using the word "null" in most comments and logging.

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PR: https://git.openjdk.org/jdk/pull/12015