public void say() {
    if (null != list && 0 != list.size()) {
      System.out.println("list...");
      for (BeanInterface bean : list) {
        System.out.println(bean.getClass().getName());
      }
    } else {
      System.out.println("List<BeanInterface> list is null !!!!!!!!!!");
    }

    System.out.println();

    if (null != map && 0 != map.size()) {
      System.out.println("map...");
      for (Map.Entry<String, BeanInterface> entry : map.entrySet()) {
        System.out.println(entry.getKey() + "      " + entry.getValue().getClass().getName());
      }
    } else {
      System.out.println("Map<String, BeanInterface> map is null !!!!!!!!!!");
    }

    System.out.println();
    if (null != beanInterface) {
      System.out.println(beanInterface.getClass().getName());
    } else {
      System.out.println("beanInterface is null...");
    }
  }