code: public static <T extends Comparable<? super T>> List<T> sortInplace(List<T> list) {
  		Collections.sort(list);
  		return list;
  	}
docs: Sorts the specified list itself into ascending order, according to the natural ordering of its elements.
  
  @param list
  the list to be sorted. May not be <code>null</code>.
  @return the sorted list itself.
  @see Collections#sort(List)