RFR: 8346227: Seal Paint and Material [v2]

[Kevin Rushforth]

On Sat, 14 Dec 2024 17:16:20 GMT, Michael Strauß <mstrauss at openjdk.org> wrote:

>> The `Paint` and `Material` classes can't be extended by user code, because their implementations require special support in internal JavaFX code. The classes should be sealed.
>
> Michael Strauß has updated the pull request incrementally with one additional commit since the last revision:
> 
>   use exhaustive switch pattern

Looks good.

-------------

Marked as reviewed by kcr (Lead).

PR Review: https://git.openjdk.org/jfx/pull/1665#pullrequestreview-2512524567