git: openjdk/jfx: jfx19: 8290393: Code sample in javadoc of ObservableValue flatMap is incorrect

[Kevin Rushforth]

Changeset: 92cefceb
Author:    John Hendrikx <jhendrikx at openjdk.org>
Committer: Kevin Rushforth <kcr at openjdk.org>
Date:      2022-07-16 14:15:47 +0000
URL:       https://git.openjdk.org/jfx/commit/92cefceb68aa8c521fb95dfba3439e0fa30dcfc6

8290393: Code sample in javadoc of ObservableValue flatMap is incorrect

Reviewed-by: kcr

! modules/javafx.base/src/main/java/javafx/beans/value/ObservableValue.java