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UI freezes with latest ScalaFX requiring Java greater than 21 to run the JFXApp3 - inexplicable infinite loop #23444

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@sjbiaga

Description

@sjbiaga

Compiler version

3.7.2-RC1

Java version

openjdk-bin-25

ScalaFX version

24.0.0-R35

Minimized example

Latest ScalaFX requires Java greater than 21.
My UI works with version 3.7.1.
After update to 3.7.2-RC1, it somehow freezes after a drag event.

The communication from the UI to the background fiber is done with cats.effect.std.Dispatcher[IO]#unsafeRunAndForget from a scalafx.scene.canvas.Canvas.

Expectation

To work smoothly just like for 3.7.1.

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area:jdkIssues tied to artifacts published under a particular jdkitype:bugregressionThis worked in a previous version but doesn't anymore

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