*/
  private List<E> snapshot() {
    List<E> list = Lists.newArrayListWithExpectedSize(size());
    for (Multiset.Entry<E> entry : entrySet()) {
      E element = entry.getElement();
      for (int i = entry.getCount(); i > 0; i--) {
        list.add(element);
      }
    }
    return list;
  }

  // Modification Operations

  /**
   * Adds a number of occurrences of the specified element to this multiset.

    assertCollectionsAreEquivalent(multiset, copy);

    assertSetIsUnmodifiable(
        multiset.entrySet(),
        new Multiset.Entry<E>() {
          @Override
          public int getCount() {
            return 1;
          }

          @Override
          public E getElement() {
            return sampleElement;
          }
        });

  }

  public void testBuilderSetCount() {
    ImmutableMultiset<String> multiset =
        new ImmutableMultiset.Builder<String>().add("a").setCount("a", 2).setCount("b", 3).build();
    assertEquals(HashMultiset.create(asList("a", "a", "b", "b", "b")), multiset);
  }

  public void testBuilderAddHandlesNullsCorrectly() {

    assertEquals(0, nullCache.size());
    Object key = new Object();
    assertSame(key, nullCache.getUnchecked(key));
    assertEquals(1, listener.getCount());
    assertEquals(0, nullCache.size());
    CacheTesting.checkEmpty(nullCache.asMap());
  }

  @GwtIncompatible // QueuingRemovalListener

    assertEquals(0, nullCache.size());
    Object key = new Object();
    assertSame(key, nullCache.getUnchecked(key));
    assertEquals(1, listener.getCount());
    assertEquals(0, nullCache.size());
    CacheTesting.checkEmpty(nullCache.asMap());
  }

  @GwtIncompatible // QueuingRemovalListener

                  if (!method.getDeclaringClass().equals(type)) {
                    return method.invoke(delegate, args);
                  }
                  checkState(started.getCount() == 1);
                  started.countDown();
                  try {
                    return method.invoke(delegate, args);
                  } catch (InvocationTargetException e) {

                  if (!method.getDeclaringClass().equals(type)) {
                    return method.invoke(delegate, args);
                  }
                  checkState(started.getCount() == 1);
                  started.countDown();
                  try {
                    return method.invoke(delegate, args);
                  } catch (InvocationTargetException e) {

      // instance methods on Stats vs instance methods on DoubleSummaryStatistics
      DoubleSummaryStatistics streamStats = stream(array).summaryStatistics();
      assertThat(stats.count()).isEqualTo(streamStats.getCount());
      assertEquivalent(stats.mean(), streamStats.getAverage());
      assertEquivalent(stats.sum(), streamStats.getSum());
      assertEquivalent(stats.max(), streamStats.getMax());

      fail();
    } catch (CancellationException expected) {
    }
    // TODO(cpovirk): implement interruption, updating this test:
    // https://github.com/google/guava/issues/1989
    assertEquals(1, gotException.getCount());
    // gotException.await();
  }

  public void testTransformAsync_cancelPropagatesToAsyncOutput() throws Exception {
    ListenableFuture<Foo> immediate = immediateFuture(new Foo());

      fail();
    } catch (CancellationException expected) {
    }
    // TODO(cpovirk): implement interruption, updating this test:
    // https://github.com/google/guava/issues/1989
    assertEquals(1, gotException.getCount());
    // gotException.await();
  }

  public void testTransformAsync_cancelPropagatesToAsyncOutput() throws Exception {
    ListenableFuture<Foo> immediate = immediateFuture(new Foo());