}
    return sum;
  }

  private enum SubMultisetSpec {
    TAIL_CLOSED {
      @Override
      <E> List<Entry<E>> expectedEntries(int targetEntry, List<Entry<E>> entries) {
        return entries.subList(targetEntry, entries.size());
      }

      @Override
      <E> SortedMultiset<E> subMultiset(
          SortedMultiset<E> multiset, List<Entry<E>> entries, int targetEntry) {

    }

    @Override
    public int size() {
        return parent.size();
    }

    @Override
    public List<Map<String, Object>> subList(final int fromIndex, final int toIndex) {
        return parent.subList(fromIndex, toIndex);
    }

    @Override
    public Object[] toArray() {
        return parent.toArray();
    }

    @Override

      ImmutableSortedSet.Builder<String> builder = ImmutableSortedSet.orderedBy(comparator);
      builder.add(BEFORE_FIRST);
      builder.add(elements);
      builder.add(AFTER_LAST);
      return builder.build().asList().subList(1, elements.length + 1);
    }
  }

  public static class ImmutableSortedSetSubsetAsListSubListGenerator
      extends TestStringListGenerator {
    @Override

                .named("ImmutableDoubleArray.asList, head subList"),
            ListTestSuiteBuilder.using(new ImmutableDoubleArrayTailSubListAsListGenerator())
                .named("ImmutableDoubleArray.asList, tail subList"),
            ListTestSuiteBuilder.using(new ImmutableDoubleArrayMiddleSubListAsListGenerator())
                .named("ImmutableDoubleArray.asList, middle subList"));

    TestSuite suite = new TestSuite();

  }

  @MapFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(SEVERAL)
  public void testPollFirst() {
    assertEquals(a, navigableMap.pollFirstEntry());
    assertEquals(entries.subList(1, entries.size()), copyToList(navigableMap.entrySet()));
  }

  @MapFeature.Require(absent = SUPPORTS_REMOVE)
  public void testPollFirstUnsupported() {

  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(SEVERAL)
  public void testPollFirst() {
    assertEquals(a, navigableSet.pollFirst());
    assertEquals(values.subList(1, values.size()), copyToList(navigableSet));
  }

  @CollectionFeature.Require(absent = SUPPORTS_REMOVE)
  public void testPollFirstUnsupported() {

  }

  @MapFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(SEVERAL)
  public void testPollFirst() {
    assertEquals(a, navigableMap.pollFirstEntry());
    assertEquals(entries.subList(1, entries.size()), copyToList(navigableMap.entrySet()));
  }

  @MapFeature.Require(absent = SUPPORTS_REMOVE)
  public void testPollFirstUnsupported() {

  }

  @Override
  public E get(int index) {
    return delegateList().get(index);
  }

  @Override
  public ImmutableList<E> subList(int fromIndex, int toIndex) {
    return unsafeDelegateList(delegateList().subList(fromIndex, toIndex));
  }

  @Override
  public Object[] toArray() {
    // Note that ArrayList.toArray() doesn't work here because it returns E[]
    // instead of Object[].

  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(SEVERAL)
  public void testPollFirst() {
    assertEquals(a, navigableSet.pollFirst());
    assertEquals(values.subList(1, values.size()), copyToList(navigableSet));
  }

  @CollectionFeature.Require(absent = SUPPORTS_REMOVE)
  public void testPollFirstUnsupported() {

    byte[] array = {(byte) 0, (byte) 1, (byte) 2, (byte) 3};
    List<Byte> list = Bytes.asList(array);
    assertThat(Bytes.toArray(list.subList(1, 3))).isEqualTo(new byte[] {(byte) 1, (byte) 2});
    assertThat(Bytes.toArray(list.subList(2, 2))).isEqualTo(new byte[] {});
  }

  // `primitives` can't depend on `collect`, so this is what the prod code has to return.
  @SuppressWarnings("EmptyList")