}

  @Override
  public final boolean hasNext() {
    return position < size;
  }

  @Override
  @ParametricNullness
  public final E next() {
    if (!hasNext()) {
      throw new NoSuchElementException();
    }
    return get(position++);
  }

  @Override
  public final int nextIndex() {
    return position;
  }

  @Override
  public final boolean hasPrevious() {
    return position > 0;

     * @param state
     *            <code>true</code> to enable XInclude.
     * @return <code>true</code> if the XInclude state was successfully set.
     */
    public static boolean setXIncludeAware(final SAXParserFactory spf, final boolean state) {
        assertArgumentNotNull("spf", spf);

        try {
            spf.setXIncludeAware(state);
            return true;
        } catch (final RuntimeException e) {

    private final Set<RequestData> childUrlSet = new LinkedHashSet<>();

    private byte[] responseBodyBytes;

    private File responseBodyFile;

    private boolean isTemporaryFile;

    private boolean noFollow = false;

    /**
     * Creates a new ResponseData instance.
     */
    public ResponseData() {
        super();
    }

    /**

 *
 * @since 4.0.0
 */
@Experimental
@Provider
public interface Log {
    /**
     * {@return true if the <b>debug</b> error level is enabled}
     */
    boolean isDebugEnabled();

    /**
     * Sends a message to the user in the <b>debug</b> error level.
     *
     * @param content the message to log
     */
    void debug(CharSequence content);

    /**

     * @return true if enabled, false otherwise
     */
    public boolean isEnabled() {
        return enabled;
    }

    /**
     * Sets whether robots.txt processing is enabled.
     * @param enabled true to enable, false to disable
     */
    public void setEnabled(final boolean enabled) {
        this.enabled = enabled;
    }

    GcFinalization.awaitClear(ref);
  }

  public void testDefaultBehaviorOfPeekForEmptyIteration() {

    AbstractIterator<Integer> empty =
        new AbstractIterator<Integer>() {
          private boolean alreadyCalledEndOfData;

          @Override
          public @Nullable Integer computeNext() {
            if (alreadyCalledEndOfData) {
              fail("Should not have been invoked again");
            }

      implements ListeningScheduledExecutorService {

    private volatile boolean shutdown;

    @Override
    public void shutdown() {
      shutdown = true;
    }

    @Override
    public List<Runnable> shutdownNow() {
      shutdown();
      return ImmutableList.of();
    }

    @Override
    public boolean isShutdown() {
      return shutdown;
    }

    @Override

  final N node;
  final BaseGraph<N> graph;

  IncidentEdgeSet(BaseGraph<N> graph, N node) {
    this.graph = graph;
    this.node = node;
  }

  @Override
  public boolean remove(@Nullable Object o) {
    throw new UnsupportedOperationException();
  }

  @Override
  public int size() {
    if (graph.isDirected()) {
      return graph.inDegree(node)
          + graph.outDegree(node)

    }

    @Override
    public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
      throw new UnsupportedOperationException();
    }

    @Override
    public boolean putAll(@ParametricNullness K key, Iterable<? extends V> values) {
      throw new UnsupportedOperationException();
    }

    @Override
    public boolean putAll(Multimap<? extends K, ? extends V> multimap) {

    }

    @Override
    public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
      throw new UnsupportedOperationException();
    }

    @Override
    public boolean putAll(@ParametricNullness K key, Iterable<? extends V> values) {
      throw new UnsupportedOperationException();
    }

    @Override
    public boolean putAll(Multimap<? extends K, ? extends V> multimap) {