Generified SimplePageAuthorizationStrategy violates its contract

The only constructor of SimplePageAuthorizationStrategy was generified so that its first parameter (securePageSuperType) has to be a subtype of Component:

public <C extends Component<?>, S extends Page<?>> SimplePageAuthorizationStrategy(
final Class<C> securePageSuperType, final Class<S> signInPageClass)

This makes using an interface to mark secure pages impossible, although the javadoc for the constructor says:

• @param securePageSuperType
• The class or interface supertype that indicates that a given Page requires
• authorization