code: @SuppressWarnings("unchecked")
      protected List _transform(final List list) {
          if (list == null) return null;
          if (list instanceof BeanList) return list;
          return new BeanList(list, this);
      }
docs: <p>_transform.</p>
  
  @param list a {@link java.util.List} object.
  @return a {@link java.util.List} object.