Recursive type bound - semantic

Asked Oct 24 '17 at 15:56

Active Oct 24 '17 at 15:59

Viewed 22 times

I try to understand what is a practical difference between:

interface Wrapper<T extends Wrapper<T>>

and

interface Wrapper<T extends Wrapper>

They seem to behave same - in what cases the second one allows more than the first one?

asked Oct 24 '17 at 15:56

Patryk

3

TL;DR: `T extends Wrapper` has a raw type, `T extends Wrapper` doesn't have a raw type. – Kayaman Oct 24 '17 at 16:02

0 Answers0