* @param <V> Value parameter type
 * @since 20.0
 */
public abstract class AbstractValueGraph<N, V> extends AbstractBaseGraph<N>
    implements ValueGraph<N, V> {
  /** Constructor for use by subclasses. */
  public AbstractValueGraph() {}

  @Override
  public Graph<N> asGraph() {
    return new AbstractGraph<N>() {
      @Override
      public Set<N> nodes() {
        return AbstractValueGraph.this.nodes();
      }

   */
  @Override
  public Iterator<E> iterator() {
    return new QueueIterator();
  }

  @Override
  public void clear() {
    for (int i = 0; i < size; i++) {
      queue[i] = null;
    }
    size = 0;
  }

  @Override
  @J2ktIncompatible // Incompatible return type change. Use inherited (unoptimized) implementation
  public Object[] toArray() {

 * "https://github.com/google/guava/wiki/OrderingExplained">{@code Ordering}</a>.
 *
 * @author Jesse Wilson
 * @author Kevin Bourrillion
 * @since 2.0
 */
@GwtCompatible
public abstract class Ordering<T extends @Nullable Object> implements Comparator<T> {
  // Natural order

  /**
   * Returns a serializable ordering that uses the natural order of the values. The ordering throws

import org.apache.logging.log4j.Logger;
import org.codelibs.fess.exception.ScriptEngineException;

/**
 * This class is a factory for script engines.
 */
public class ScriptEngineFactory {
    /**
     * Constructor.
     */
    public ScriptEngineFactory() {
        super();
    }

    private static final Logger logger = LogManager.getLogger(ScriptEngineFactory.class);

    /**

            elements.add((Element) node);
        }
        return elements;
    }

    public void appendChild(String text) {
        appendChild(document.createTextNode(text));
    }

    public void appendChild(Node node) {
        boolean inPara = false;
        if (node instanceof Element) {
            Element element = (Element) node;

import okhttp3.Request;
import okhttp3.Response;

public final class CacheResponse {
  private final OkHttpClient client;

  public CacheResponse(File cacheDirectory) throws Exception {
    int cacheSize = 10 * 1024 * 1024; // 10 MiB
    Cache cache = new Cache(cacheDirectory, cacheSize);

    client = new OkHttpClient.Builder()
        .cache(cache)
        .build();
  }

  public void run() throws Exception {

/** Tests for {@link ClosingFuture} that exercise {@link ClosingFuture#finishToFuture()}. */
@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
public class ClosingFutureFinishToFutureTest extends AbstractClosingFutureTest {
  public void testFinishToFuture_throwsIfCalledTwice() throws Exception {
    ClosingFuture<Closeable> closingFuture =

 *
 * @author Kevin Bourrillion
 * @author Jared Levy
 * @since 2.0
 */
@GwtCompatible
public final class HashMultiset<E extends @Nullable Object> extends AbstractMapBasedMultiset<E> {

  /** Creates a new, empty {@code HashMultiset} using the default initial capacity. */
  public static <E extends @Nullable Object> HashMultiset<E> create() {
    return create(ObjectCountHashMap.DEFAULT_SIZE);
  }

  /**

 *
 * @author Kevin Bourrillion
 * @since 2.0
 */
@GwtCompatible
public abstract class ForwardingIterator<T extends @Nullable Object> extends ForwardingObject
    implements Iterator<T> {

  /** Constructor for use by subclasses. */
  protected ForwardingIterator() {}

  @Override
  protected abstract Iterator<T> delegate();

  @Override
  public boolean hasNext() {
    return delegate().hasNext();
  }

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class QueueElementTester<E> extends AbstractQueueTester<E> {
  @CollectionSize.Require(ZERO)
  public void testElement_empty() {
    assertThrows(NoSuchElementException.class, () -> getQueue().element());
    expectUnchanged();
  }

  @CollectionSize.Require(ONE)
  public void testElement_size1() {