Java: “Sorry, but the developers of Peanut didn’t declare it to implement the Crackable interface, even though it has all the relevant methods, so if you want to treat it like a nut your choices are write a wrapper class or call those methods using Reflections”

StackOverflow: Question closed as duplicate. Someone else already asked whether or not something is a nut.

Rust is more like: unless you can mathematically prove to me that this is equivalent to a nut there is no ducking way I’ll ever let you compiled this.