RFR: 8324681: Replace NULL with nullptr in HotSpot jtreg test native code files [v5]

[Coleen Phillimore]

On Mon, 29 Jan 2024 13:47:10 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> This mechanically replaces NULL with nullptr in hpp/cpp native files in test native code.  This didn't attempt to change NULL in comments to say null because nullptr is generally the right thing for the comment to say.  It does attempt to change NULL to "null" rather than "nullptr" in strings.  Any changes for "nullptr" to "null" in comments can be changed in a future RFE in a smaller patch. I didn't see any when it was scrolling by to make my script more complicated.
>> 
>> Ran tier1-4 testing.
>
> Coleen Phillimore has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Fix some casts unnecessary with nullptr
>  - Fix copyrights

macos-aarch64 build failure in GHA appears unrelated, internal testing passed.

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PR Comment: https://git.openjdk.org/jdk/pull/17593#issuecomment-1915186403