* order; equivalent to {@code Longs.fromByteArray(new byte[] {b1, b2, b3, b4, b5, b6, b7, b8})}.
   *
   * @since 7.0
   */
  public static long fromBytes(
      byte b1, byte b2, byte b3, byte b4, byte b5, byte b6, byte b7, byte b8) {
    return (b1 & 0xFFL) << 56
        | (b2 & 0xFFL) << 48
        | (b3 & 0xFFL) << 40
        | (b4 & 0xFFL) << 32

            };
    TypeWithDuplicates a = new TypeWithDuplicates(1, 1);
    TypeWithDuplicates b1 = new TypeWithDuplicates(2, 1);
    TypeWithDuplicates b2 = new TypeWithDuplicates(2, 2);
    TypeWithDuplicates c = new TypeWithDuplicates(3, 1);
    CollectorTester.of(collector, equivalence)
        .expectCollects(ImmutableSortedSet.of(a, b1, c), a, b1, c, b2);
  }

  public void testEquals_bothDefaultOrdering() {