RFR: 8335630: Crash if Platform::exit called with fullScreen Stage on macOS 14

[Andy Goryachev]

On Mon, 15 Jul 2024 22:53:52 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> since all accesses are happening on the FX app thread

Not quite right: the following threads access the field, apart from JavaFX Application Thread:


thread=JavaFX-Launcher
thread=Thread-2
thread=PulseTimer-CVDisplayLink thread
thread=QuantumRenderer-0


The output above logs thread names that access `Application.application` field, running the reproducer attached to both tickets.

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PR Review Comment: https://git.openjdk.org/jfx/pull/1506#discussion_r1678487838