How to acces all beans with @VaadinSessionScope

I’m wondering how I can fetch all the spring beans with scope “VaadinSessionScope”.
So far I can access the BeanStore from the VaadinSession with:

VaadinSession session = getSession();
BeanStore beanStore = session.getAttribute(BeanStore.class);
System.out.println("beanStore: " + beanStore.getClass());

BeanStore itself has a get method, which I can use to fetch one certain bean but I need all the session beans.
Is there a possibility to get a list somehow?

I’m using the addon Vaadin Spring:!addon/vaadin-spring