RFR: 8272808: Update constant collections to use the new immutable collections - leftovers

[Nir Lisker]

On Thu, 23 Sep 2021 21:55:57 GMT, delvh <github.com+51889757+delvh at openjdk.org> wrote:

>> We still build JavaFX with `--release 11` so applications using JavaFX can run on JDK 11 or later. At some point we will bump the minimum version of Java that is required, but until then we cannot use records or any other feature that isn't in Java 11.
>
> That is indeed a valid argument as to why this isn't a record.
> Obviously, I did not think about that while reviewing.

@delvh If you are interested, I already have a branch with records replacements for when we are able to use them https://github.com/nlisker/jfx/tree/Records. It hasn't been updated in a while so it doesn't include everything on my list.

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PR: https://git.openjdk.java.net/jfx/pull/627