How to get generic bean without unchecked?

Question

Java

Hello everybody.
There is some class with parameterized type Storage<T>.
All three statements below result in a warning. unchecked cast.
Storage<User> storage = ctx.getBean("storageMemory");
Storage<User> storage = ctx.getBean(Storage.class);
Storage<User> storage = ctx.getBean("storageMemory", Storage.class);
Actually the question is:
How to get a bean of a generic type without uncecked? Annotations or xml - doesn't matter.
Is there any option other than making storage a field of some autowired container class?

Answer 1

And why, for example, do not make heirs of the type

@Repository
public class UserStorage extends Storage<User> {
    ...
}

and work directly with them?