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I'm on JVM, I have two coroutines that needs to access a mutable state exclusively. I can choose between using `synchronized` or a `Mutex`. Both work. Which one should I use? On one side, `synchronized` can block the thread of a coroutine but it's much faster, on the other side `Mutex` never blocks the thread but it's slower. Is there a preferred option, in general? Thanks

You could also use a `MutableStateFlow`, which uses `synchronized` under the hood.