Collection<E> collection) {
      if (collection instanceof NavigableSet) {
        return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
      } else if (collection instanceof SortedSet) {
        return Collections.unmodifiableSortedSet((SortedSet<E>) collection);
      } else if (collection instanceof Set) {
        return Collections.unmodifiableSet((Set<E>) collection);

        Collection<E> collection) {
      if (collection instanceof NavigableSet) {
        return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
      } else if (collection instanceof SortedSet) {
        return Collections.unmodifiableSortedSet((SortedSet<E>) collection);
      } else if (collection instanceof Set) {
        return Collections.unmodifiableSet((Set<E>) collection);

            throws IOException {
        if (request instanceof jcifs.internal.Request) {
            if (response == null) {
                response = (T) ((jcifs.internal.Request<?>) request).initResponse(getContext());
            } else if (isSMB2()) {
                throw new IOException("Should not provide response argument for SMB2");
            }

   */
  public static <E extends Enum<E>> ImmutableSet<E> immutableEnumSet(Iterable<E> elements) {
    if (elements instanceof ImmutableEnumSet) {
      return (ImmutableEnumSet<E>) elements;
    } else if (elements instanceof Collection) {
      Collection<E> collection = (Collection<E>) elements;
      if (collection.isEmpty()) {
        return ImmutableSet.of();
      } else {

            }
            buf.append('}');
        } else if (obj instanceof Integer || obj instanceof Long || obj instanceof Float || obj instanceof Double) {
            buf.append(obj);
        } else if (obj instanceof Boolean) {
            buf.append(obj.toString());
        } else if (obj instanceof Date) {

            }
            if (value instanceof String || value == null) {
                return new Pair<>(key, value);
            }
            if (arrayFieldSet.contains(key)) {
                if (value instanceof String[]) {
                    value = stream((String[]) value).get(stream -> stream.collect(Collectors.joining("\n")));
                } else if (value instanceof List) {

    }

    /**
     * Get the channel manager
     *
     * @return channel manager instance
     */
    public ChannelManager getChannelManager() {
        return channelManager;
    }

    /**
     * Get the lease manager for SMB3 lease support
     *
     * @return lease manager instance
     */
    public LeaseManager getLeaseManager() {
        return leaseManager;
    }

    return (Iterator<T>) EmptyModifiableIterator.INSTANCE;
  }

  /** Returns an unmodifiable view of {@code iterator}. */
  public static <T extends @Nullable Object> UnmodifiableIterator<T> unmodifiableIterator(
      Iterator<? extends T> iterator) {
    checkNotNull(iterator);
    if (iterator instanceof UnmodifiableIterator) {

    Iterator<Integer> source = asList(1, 2, 3).iterator();
    Iterator<List<Integer>> partitions = Iterators.partition(source, 2);
    assertTrue(partitions.next() instanceof RandomAccess);
    assertTrue(partitions.next() instanceof RandomAccess);
  }

  public void testPaddedPartition_badSize() {
    Iterator<Integer> source = singletonIterator(1);

    Iterator<Integer> source = asList(1, 2, 3).iterator();
    Iterator<List<Integer>> partitions = Iterators.partition(source, 2);
    assertTrue(partitions.next() instanceof RandomAccess);
    assertTrue(partitions.next() instanceof RandomAccess);
  }

  public void testPaddedPartition_badSize() {
    Iterator<Integer> source = singletonIterator(1);