Java generics aren't powerful enough; an exception signature is a union type whose size varies. There's no way to declare that a method's exception signature de

Java generics aren't powerful enough; an exception signature is a union type whose size varies. There's no way to declare that a method's exception signature depends on the signatures of the arguments for each call. No way to take a lambda or method reference and throw whatever that could throw. Checking is nice but IMHO not worth giving up higher-order functions.