RFR: 8342860: Fix more NULL usage backsliding

[Johan Sjölen]

On Fri, 1 Nov 2024 13:35:56 GMT, theoweidmannoracle <duke at openjdk.org> wrote:

> - Changed several "NULL" in comments to "null"
> - Changed several `NULL` in code to `nullptr`

Thank you, these changes looks good to me.

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Marked as reviewed by jsjolen (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21826#pullrequestreview-2415877774