Creating an empty array of functional interfaces

Question

I have a method which returns an empty array of Function<T,V>

public <T, V> Function<T, V>[] foo() {
    ...
    return (Function<T, V>[]) new Object[0];            
    ...
}

But I catch java.lang.ClassCastException at runtime. Is it possible to return an empty array of functional interfaces?

Answer 1

The closest thing you can do is

return (Function<T, V>[]) new Function[0];

This has nothing to do with functional interfaces, and everything to do with arrays and generics not interacting well.