code: @ReplacedBy("com.google.common.collect.Ordering.natural().nullsLast()")
      public static final <T extends Comparable<?>> Comparator<T> comparable ()
      {
          @SuppressWarnings("unchecked") Comparator<T> comp = (Comparator<T>)COMPARABLE;
          return comp;
      }
docs: code to freak out; I don't entirely understand why