RFR: 8299423: JavaFX Mac system menubar leaks [v4]

[Florian Kirmaier]

On Wed, 11 Jan 2023 19:31:14 GMT, Michael Strauß <mstrauss at openjdk.org> wrote:

>> Florian Kirmaier has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   JDK-8299423
>>   Added null check before using the callback
>
> tests/system/src/test/java/test/javafx/scene/control/SystemMenuBarTest.java line 36:
> 
>> 34: import javafx.scene.layout.VBox;
>> 35: import javafx.stage.Stage;
>> 36: import org.junit.*;
> 
> Since this a new class, can you use the JUnit5 API?

done

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PR: https://git.openjdk.org/jfx/pull/987