SortedSet<String> set = of();
    assertThrows(NoSuchElementException.class, () -> set.last());
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testEmpty_serialization() {
    SortedSet<String> set = of();
    SortedSet<String> copy = SerializableTester.reserialize(set);
    assertThat(copy).isSameInstanceAs(set);
  }

  public void testSingle_comparator() {

    SortedSet<String> set = of();
    assertThrows(NoSuchElementException.class, () -> set.last());
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testEmpty_serialization() {
    SortedSet<String> set = of();
    SortedSet<String> copy = SerializableTester.reserialize(set);
    assertThat(copy).isSameInstanceAs(set);
  }

  public void testSingle_comparator() {

    assertThat(bimap.inverse().inverse()).isSameInstanceAs(bimap);
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testEmptySerialization() {
    ImmutableBiMap<String, Integer> bimap = ImmutableBiMap.of();
    assertThat(SerializableTester.reserializeAndAssert(bimap)).isSameInstanceAs(bimap);
  }

  @J2ktIncompatible

    assertEquals(HashMultiset.create(multimap.values()), HashMultiset.create(valuesCopy));
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testEmptySerialization() {
    Multimap<String, Integer> multimap = ImmutableListMultimap.of();
    assertThat(SerializableTester.reserialize(multimap)).isSameInstanceAs(multimap);
  }

  @J2ktIncompatible

    assertEquals(HashMultiset.create(multimap.values()), HashMultiset.create(valuesCopy));
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testEmptySerialization() {
    Multimap<String, Integer> multimap = ImmutableListMultimap.of();
    assertThat(SerializableTester.reserialize(multimap)).isSameInstanceAs(multimap);
  }

  @J2ktIncompatible

    assertEquals(HashMultiset.create(multimap.values()), HashMultiset.create(valuesCopy));
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testEmptySerialization() {
    Multimap<String, Integer> multimap = ImmutableSetMultimap.of();
    assertThat(SerializableTester.reserialize(multimap)).isSameInstanceAs(multimap);
  }

  @J2ktIncompatible