* the returned instance these are implemented by simply copying the source list.
   *
   * <p>Example:
   *
   * <pre>{@code
   * Ordering.allEqual().nullsLast().sortedCopy(
   *     asList(t, null, e, s, null, t, null))
   * }</pre>
   *
   * <p>Assuming {@code t}, {@code e} and {@code s} are non-null, this returns {@code [t, e, s, t,