Spring Prototype scoped bean in a singleton

From Spring documentation:

You do not need to use the <aop:scoped-proxy/> in conjunction with
beans that are scoped as singletons or prototypes. If you try to
create a scoped proxy for a singleton bean, the BeanCreationException
is raised.

It seems the documentation has changed a bit for version 3.2 documentation where you can find this sentence:

You do not need to use the <aop:scoped-proxy/> in conjunction with
beans that are scoped as singletons or prototypes.

It seems that its not expected you use a proxied prototype bean, as each time it is requested to the BeanFactory it will create a new instance of it.

---

In order to have a kind of factory for your prototype bean you could use an ObjectFactory as follows:

@Component
public class SingletonBean {

    @Autowired
    private ObjectFactory<PrototypeBean> prototypeFactory;

    public void doSomething() {
        PrototypeBean prototypeBean = prototypeFactory.getObject();
        prototypeBean.setX(1);
        prototypeBean.display();
    }
}

and your prototype bean would be declared as follows:

@Component 
@Scope(value="prototype")
public class PrototypeBean {
    // ...
}