RFR: 8369836: Update HeaderBar API [v2]

[Michael Strauß]

On Thu, 23 Oct 2025 18:04:28 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> Michael Strauß has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Make leftSystemInset/rightSystemInset/minSystemHeight attached properties
>
> modules/javafx.graphics/src/main/java/javafx/scene/layout/HeaderBar.java line 888:
> 
>> 886:             this.leftSystemInset = new ReadOnlyObjectWrapper<>(stage, "HeaderBar.leftSystemInset", EMPTY);
>> 887:             this.rightSystemInset = new ReadOnlyObjectWrapper<>(stage, "HeaderBar.rightSystemInset", EMPTY);
>> 888:             this.minSystemHeight = new ReadOnlyDoubleWrapper(stage, "HeaderBar.minSystemHeight");
> 
> Should the classname prefix in the property `name` be fully qualified? If it were, then a utility could find the corresponding method(s) from the bean using the convention that if a name contains a `.`, it is an attached property with the bean being an argument to the named (static) method.

This is pending a discussion on the [mailing list](https://mail.openjdk.org/pipermail/openjfx-dev/2025-November/057431.html).

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PR Review Comment: https://git.openjdk.org/jfx/pull/1936#discussion_r2535591882