docs: public final SessionTracker
      lazyGetSessionTracker() throws Exception {
      String beanName = getSessionTrackerName();
      SessionTracker sessionTracker =
        (SessionTracker) this.beansMap.get(beanName);
      if (sessionTracker == null) {
        sessionTracker = new SessionTracker();
        sessionTracker.setLogger(lazyGetSecureLogger());
        sessionTracker.setSrvI18n(lazyGetSrvI18n());
        lazyGetLogger().info(null, AFactoryAppBeans.class, beanName
          + " has been created.");
        this.beansMap.put(beanName, sessionTracker);
      }
      return sessionTracker;
    }