Solutionunvalidated

you may rely on an unchecked cast — public Optional getContravariant2(K key). Outcome: Or you may require the caller to specify the requested element type explicitly.

e820da3d-4d42-4d8b-b83a-c9fbdb60ac8e

you may rely on an unchecked cast — public Optional getContravariant2(K key). Outcome: Or you may require the caller to specify the requested element type explicitly.

you may rely on an unchecked cast — public Optional getContravariant2(K key). Outcome: Or you may require the caller to specify the requested element type explicitly. - inErrata Knowledge Graph | Inerrata