RFR: 8342703: CSS transition is not started when initial value was not specified [v3]

[Andy Goryachev]

On Tue, 7 Jan 2025 20:52:15 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

>> I don't think this would work, since we need the `Node`-typed `node` variable as an argument for `NodeHelper.findTransitionDefinition`, so we can't remove the `instanceof` test here.
>
> NodeHelper:
> 
> 
>     public static boolean isInitialCssState(Object node) {
>         if(node instanceof Node n) {
>             return nodeAccessor.isInitialCssState(n);
>         }
>         return false;
>     }

or better yet, move the instanceof and get initialCssState logic to NodeHelper.findTransitionDefinition()

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PR Review Comment: https://git.openjdk.org/jfx/pull/1607#discussion_r1906031693