multiset = multiset.tailMultiset(firstExclusive, BoundType.OPEN);
                }

                if (to == Bound.INCLUSIVE) {
                  multiset = multiset.headMultiset(lastInclusive, BoundType.CLOSED);
                } else if (to == Bound.EXCLUSIVE) {
                  multiset = multiset.headMultiset(lastExclusive, BoundType.OPEN);
                }

                return multiset;
              }

    return (result == null) ? entrySet = createEntrySet() : result;
  }

  Set<Entry<E>> createEntrySet() {
    @WeakOuter
    final class EntrySetImpl extends Multisets.EntrySet<E> {
      @Override
      Multiset<E> multiset() {
        return DescendingMultiset.this;
      }

      @Override
      public Iterator<Entry<E>> iterator() {
        return entryIterator();
      }

      @Override
      Multiset<Integer> get() {
        return OldConcurrentHashMultiset.create();
      }
    },
    SYNCHRONIZED_MULTISET() {
      @Override
      Multiset<Integer> get() {
        return Synchronized.multiset(HashMultiset.<Integer>create(), null);
      }
    },
    ;

    abstract Multiset<Integer> get();
  }

  /**

  }

  @CollectionSize.Require(ONE)
  @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE)
  public void testKeysEntrySetIteratorRemove() {
    Multiset<K> keys = multimap().keys();
    Iterator<Multiset.Entry<K>> itr = keys.entrySet().iterator();
    assertEquals(Multisets.immutableEntry(k0(), 1), itr.next());
    itr.remove();
    assertTrue(multimap().isEmpty());
  }

  @CollectionSize.Require(SEVERAL)

  }

  public void testMultisetsSpliterator() {
    Multiset<String> multiset = TreeMultiset.create();
    multiset.add("a", 3);
    multiset.add("b", 1);
    multiset.add("c", 2);

    List<String> actualValues = new ArrayList<>();
    multiset.spliterator().forEachRemaining(actualValues::add);
    assertThat(multiset).containsExactly("a", "a", "a", "b", "c", "c").inOrder();
  }

      Multiset<E> multiset, ObjectOutputStream stream) throws IOException {
    int entryCount = multiset.entrySet().size();
    stream.writeInt(entryCount);
    for (Multiset.Entry<E> entry : multiset.entrySet()) {
      stream.writeObject(entry.getElement());
      stream.writeInt(entry.getCount());
    }
  }

  /**

  }

  @LazyInit private transient @Nullable Reference<Multiset<N>> predecessorsReference;

  @Override
  public Set<N> predecessors() {
    return Collections.unmodifiableSet(predecessorsMultiset().elementSet());
  }

  private Multiset<N> predecessorsMultiset() {
    Multiset<N> predecessors = getReference(predecessorsReference);
    if (predecessors == null) {

        new ImmutableMultiset.Builder<String>().addCopies("x", 10).build();
    multiset.addAll(adds);
    assertEquals(1, addCalls.get());
  }

  public void testRemoveUnsupported() {
    Multiset<String> multiset = new NoRemoveMultiset<>();
    multiset.add("a");
    assertThrows(UnsupportedOperationException.class, () -> multiset.remove("a"));
    assertTrue(multiset.contains("a"));
  }

    assertEquals(original, copy);
    assertTrue(copy instanceof ImmutableSet);
    return copy;
  }

  @CanIgnoreReturnValue
  @GwtIncompatible // SerializableTester
  static <E> Multiset<E> reserializeAndAssertLenient(Multiset<E> original) {
    Multiset<E> copy = reserialize(original);
    assertEquals(original, copy);
    assertTrue(copy instanceof ImmutableMultiset);
    return copy;
  }

  @CanIgnoreReturnValue

    return new Strings();
  }

  @Override
  public Multiset<String> create(Object... elements) {
    String[] array = new String[elements.length];
    int i = 0;
    for (Object e : elements) {
      array[i++] = (String) e;
    }
    return create(array);
  }

  protected abstract Multiset<String> create(String[] elements);

  @Override
  public String[] createArray(int length) {