> You can have any number of sentinel objects. Of course, but giving a memory address to the null and/or undefined value feels (after having used JNI) really a

> You can have any number of sentinel objects. Of course, but giving a memory address to the null and/or undefined value feels (after having used JNI) really awkward. My API cannot(?) sensibly distinguish between null and undefined without giving at least one of them a distinct address. (Or maybe it can... i'll have to try that...)