code: public static <T> void sortReverse(List<T> list, Comparator<? super T> c) {
  		Collections.sort(list, Collections.reverseOrder(c));
  	}
docs: 倒序排序, 采用JDK认为最优的排序算法, 使用Comparator
  
  @see java.util.Collections#sort(List, Comparator)