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How can I get all the initialized managed beans in the session?

How can I get all the initialized managed beans in the session? Following code crashes the JVM every time.

FacesContext facesContext=FacesContext.getCurrentInstance();
com.sun.faces.application.ApplicationAssociate application = 
ApplicationAssociate.getInstance(facesContext.getExternalContext());

Can't you use something like

 FacesContext context = FacesContext.getCurrentInstance();
 HttpSession session = (HttpSession) context.getExternalContext().getSession(true);
 Enumeration mySessionBeans = session.getAttributeNames();

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