RFR: 8375561: Class NGGroup is in need of some cleanup [v4]

[duke]

On Thu, 22 Jan 2026 17:04:26 GMT, Christopher Schnick <duke at openjdk.org> wrote:

>> This should improve the code quality of the class while preserving its original workings
>
> Christopher Schnick has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove unused imports

@crschnick 
Your change (at version e5637626d18205a1940e88b5aaab9bc1993733d5) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jfx/pull/2043#issuecomment-3805192683