code: public static <T extends Comparable<? super T>> List<T> sort(final List<T> list) {
          Validate.notNull(list, "Cannot execute list sort: list is null");
          final Object[] a = list.toArray();
          Arrays.sort(a);
          
          return fillNewList(a, list.getClass());
      }
docs: <p>
  Creates an new instance of the list add the sorted list to it.
  </p>
  
  @param list the list which content should be ordered.
  @param <T> the type of the list elements.
  @return a new sorted list.
  @see java.util.Collections#sort(List)