Very interesting to see how the Rust-JNI interface gets used in a production environment (e.g., the topic of unifying logging typically doesn't come up in "your first Rust-JNI app" tutorials, for instance)

I do have one question around the assignment to `static mut CALL_STATE`. Don't you need some form of synchronization/memory fence/memory barrier to make sure that other threads see that assignment?

On x86/x64 it probably doesn't matter (total store order), but other architectures are less lenient.