/** * Hilfsmethode zur Ermittlung der aktuellen User Id * * @return long id * @throws NullPointerException */ private long getCurrentUserId() throws NullPointerException { FacesContext fc = FacesContext.getCurrentInstance(); ExternalContext externalContext = fc.getExternalContext(); long id = Long.parseLong(externalContext.getUserPrincipal().getName()); return id; }