RFR: JDK-8304439: Subscription based listeners [v6]

[Andy Goryachev]

On Thu, 29 Jun 2023 21:38:09 GMT, John Hendrikx <jhendrikx at openjdk.org> wrote:

>> Makes `Subscription` public (removing some of its methods that are unnecessary), and adds methods that can provide `Subscription`s in `ObservableValue`.
>
> John Hendrikx has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Changed subscription methods to use the subscribe name

modules/javafx.base/src/main/java/com/sun/javafx/binding/ConditionalBinding.java line 102:

> 100:         }
> 101:     }
> 102: }

missing newline?

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PR Review Comment: https://git.openjdk.org/jfx/pull/1069#discussion_r1248328610