*
   * <ul>
   *   <li>If {@code C} explicitly implements {@link Object#equals}, the deserialized instance will
   *       be checked to be equal to the instance before serialization.
   *   <li>If {@code C} doesn't explicitly implement {@code equals} but instead inherits it from a
   *       superclass, no equality check is done on the deserialized instance because it's not clear

    map.put("one", 1);
    map.put("two", 2);
    map.put("three", 3);
    return SerializableTester.reserialize(map);
  }

  @Override
  protected SortedMap<String, Integer> makeEmptyMap() throws UnsupportedOperationException {
    NavigableMap<String, Integer> map = new SafeTreeMap<>();
    return SerializableTester.reserialize(map);
  }

  @Override
  protected String getKeyNotInPopulatedMap() {
    return "minus one";
  }

    Set<Multiset.Entry<E>> expected = getMultiset().entrySet();
    assertEquals(expected, SerializableTester.reserialize(expected));
  }

  @CollectionFeature.Require(SERIALIZABLE_INCLUDING_VIEWS)
  public void testElementSetSerialization() {
    Set<E> expected = getMultiset().elementSet();
    assertEquals(expected, SerializableTester.reserialize(expected));
  }

    Set<Multiset.Entry<E>> expected = getMultiset().entrySet();
    assertEquals(expected, SerializableTester.reserialize(expected));
  }

  @CollectionFeature.Require(SERIALIZABLE_INCLUDING_VIEWS)
  public void testElementSetSerialization() {
    Set<E> expected = getMultiset().elementSet();
    assertEquals(expected, SerializableTester.reserialize(expected));
  }

  }

  public void testEqualsAndHashCode() {
    new EqualsTester()
        .addEqualityGroup(Optional.absent(), reserialize(Optional.absent()))
        .addEqualityGroup(Optional.of(Long.valueOf(5)), reserialize(Optional.of(Long.valueOf(5))))
        .addEqualityGroup(Optional.of(Long.valueOf(42)), reserialize(Optional.of(Long.valueOf(42))))
        .testEquals();
  }

  public void testToString_absent() {

     * created automatically.
     *
     * @param output The file to serialize the model to, must not be {@code null}.
     * @param options The options to use for serialization, may be {@code null} to use the default values.
     * @param model The model to serialize, must not be {@code null}.
     * @throws IOException If the model could not be serialized.
     */

    map.put("one", 1);
    map.put("two", 2);
    map.put("three", 3);
    return SerializableTester.reserialize(map);
  }

  @Override
  protected SortedMap<String, Integer> makeEmptyMap() throws UnsupportedOperationException {
    NavigableMap<String, Integer> map = new SafeTreeMap<>();
    return SerializableTester.reserialize(map);
  }

  @Override
  protected String getKeyNotInPopulatedMap() {
    return "minus one";
  }

  @J2ktIncompatible
    private static void reserializeAndAssert(Object object) throws Exception {
    Object copy = reserialize(object);
    assertEquals(object, copy);
    assertEquals(object.getClass(), copy.getClass());
  }

  @GwtIncompatible
  @J2ktIncompatible
    private static Object reserialize(Object object) throws Exception {
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();

  public void testSerializationContainingSelf() {
    Multiset<Multiset<?>> multiset = HashMultiset.create();
    multiset.add(multiset, 2);
    Multiset<Multiset<?>> copy = SerializableTester.reserialize(multiset);
    assertEquals(2, copy.size());
    assertSame(copy, copy.iterator().next());
  }

  @J2ktIncompatible
  @GwtIncompatible // Only used by @GwtIncompatible code

  public void testSerialization() {
    assertThat(reserialize(ImmutableDoubleArray.of())).isSameInstanceAs(ImmutableDoubleArray.of());
    assertThat(reserialize(ImmutableDoubleArray.of(0, 1).subArray(1, 1)))
        .isSameInstanceAs(ImmutableDoubleArray.of());

    ImmutableDoubleArray iia = ImmutableDoubleArray.of(0, 1, 3, 6).subArray(1, 3);
    ImmutableDoubleArray iia2 = reserialize(iia);
    assertThat(iia2).isEqualTo(iia);