I think these are a strong hint they're not truly JNI: Line 61: * <p> Most methods in this class are very low-level, and correspond to a * small number of

I think these are a strong hint they're not truly JNI: Line 61: * <p> Most methods in this class are very low-level, and correspond to a * small number of hardware instructions (on typical machines). Compilers * are encouraged to optimize these methods accordingly. Line 90: /// peek and poke operations /// (compilers should optimize these to memory ops)