RFR: 8364687: Enable headless with -Dglass.platform=headless [v2]

[Johan Vos]

On Tue, 5 Aug 2025 11:45:50 GMT, Clément de Tastes <duke at openjdk.org> wrote:

>> Basically allow -Dglass.platform=headless to enable headless, not only -Dglass.platform=Headless.
>> This makes it consistent with other options (macosx, windows, linux, gtk and ios) as well was less error-prone for enabling it.
>
> Clément de Tastes has updated the pull request incrementally with one additional commit since the last revision:
> 
>   remove additional space

Marked as reviewed by jvos (Reviewer).

I filed https://bugs.openjdk.org/browse/JDK-8365309 as a follow-up.

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PR Review: https://git.openjdk.org/jfx/pull/1864#pullrequestreview-3109185683
PR Comment: https://git.openjdk.org/jfx/pull/1864#issuecomment-3178227700