Less than you'd think – it comes up in serializing/deserializing data, somewhat, because JNI has a fair bit of overhead, but this isn't really like Rust's "unsa

Less than you'd think – it comes up in serializing/deserializing data, somewhat, because JNI has a fair bit of overhead, but this isn't really like Rust's "unsafe". To have fast Java, you really need the JIT to be happy, and that's not a safe bet if you're doing random things with Unsafe.