RFR: 8349373: Support JavaFX preview features [v2]

[Kevin Rushforth]

On Tue, 4 Feb 2025 19:20:47 GMT, Michael Strauß <mstrauss at openjdk.org> wrote:

>> The space of people who know what a JDK preview is is larger than that of JFX people.  I think we might want to point to JEP12 and explicitly explain the difference, that's all.
>
> We could also do that, but the problem is that the contents of JEP 12 only map to JavaFX in some parts, but not in others. So we would need to include weasel language like "where applicable" (which always leaves a bit of room for interpretation), or provide what would basically be a detailed sentence-by-sentence diff.
> 
> So in the end, it might still be easier to point at our own (complete) definition instead of a partially applicable definition somewhere else.

Andy's suggestion matches what I did for [Incubator Modules](https://github.com/kevinrushforth/jfx/blob/jfx.incubator/INCUBATOR-MODULES.md). This idea being that, given familiarity with the JDK concept (with a pointer to where you can read more about that), how are JavaFX Preview Features different? 90% vs 95%, lack of javac support, we use a property rather than a dedicated command line option, etc.

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PR Review Comment: https://git.openjdk.org/jfx/pull/1359#discussion_r1941798119