Using Beans in composite

I have a class like this

@SpringComponent
@Scope(scopeName = ConfigurableBeanFactory.SCOPE_PROTOTYPE)
public class CardView extends Div {

    @Autowired
    public CardView(...some services...) {
        ...
    }
}

which I would like to use in a composite:

public class SpringCompositeDemo extends Composite<CardView> {

This is currently not possible. My workaround is to extend Composite:

@SpringComponent
public abstract class SpringComposite<T extends Component> extends Composite<T> {
    private ApplicationContext applicationContext;

    @SuppressWarnings("unchecked")
    @Override
    protected T initContent() {
        Class<? extends Component> contentType = findContentType((Class<? extends Composite<?>>) getClass());
        if (AnnotationUtils.findAnnotation(contentType, org.springframework.stereotype.Component.class) != null)
            if (applicationContext != null) {
                return (T) applicationContext.getBean(contentType);
            } else {
                throw new IllegalStateException("Cannot access Composite content before bean initialization");
            }
        return (T) ReflectTools.createInstance(contentType);
    }

    @Autowired
    public final void setApplicationContext(ApplicationContext applicationContext) {
        this.applicationContext = applicationContext;
    }

    /*
     * copied from Composite#findContentType(Class)
     */
    private static Class<? extends Component> findContentType(
            Class<? extends Composite<?>> compositeClass) {
        Type type = GenericTypeReflector.getTypeParameter(
                compositeClass.getGenericSuperclass(),
                Composite.class.getTypeParameters()[0]);
        if (type instanceof Class || type instanceof ParameterizedType) {
            return GenericTypeReflector.erase(type).asSubclass(Component.class);
        }
        throw new IllegalStateException(getExceptionMessage(type));
    }

    /*
     * copied from Composite#getExceptionMessage(Type)
     */
    private static String getExceptionMessage(Type type) {
        if (type == null) {
            return "Composite is used as raw type: either add type information or override initContent().";
        }

        if (type instanceof TypeVariable) {
            return String.format(
                    "Could not determine the composite content type for TypeVariable '%s'. "
                            + "Either specify exact type or override initContent().",
                    type.getTypeName());
        }
        return String.format(
                "Could not determine the composite content type for %s. Override initContent().",
                type.getTypeName());
    }
}

It would be nice to have this work out of the box.

Start with Composite.initContent(), findContentType(), and the Spring ApplicationContext bean-creation path described in the issue. Reproduce the CardView and SpringCompositeDemo examples, then determine the integration needed for Spring-managed composite content. Done means a prototype-scoped Spring component can be used as Composite content without the custom SpringComposite workaround.