}

  @Override
  public Set<E> edges() {
    return delegate().edges();
  }

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

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

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

  @Override

  abstract ContiguousSet<C> subSetImpl(
      C fromElement, boolean fromInclusive, C toElement, boolean toInclusive);

  @SuppressWarnings("MissingOverride") // Supermethod does not exist under GWT.
  abstract ContiguousSet<C> tailSetImpl(C fromElement, boolean inclusive);

  /**
   * Returns the set of values that are contained in both this set and the other.
   *

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.util;

/**
 * Functional interface for boolean functions.
 * Represents a function that accepts one argument and produces a boolean result.
 * @param <T> the type of the input to the function
 */
@FunctionalInterface
public interface BooleanFunction<T> {
    /**

     * @param size the size of the signature data
     * @return whether signature verification is successful
     */
    boolean verifySignature(byte[] buffer, int i, int size);

    /**
     * Checks if signature verification failed.
     *
     * @return whether signature verification failed
     */
    boolean isVerifyFailed();

    /**
     * Checks if the response indicates an error.
     *

        //   method.
        return ElementOrder.unordered();
      }

      @Override
      public boolean isDirected() {
        return AbstractNetwork.this.isDirected();
      }

      @Override
      public boolean allowsSelfLoops() {
        return AbstractNetwork.this.allowsSelfLoops();
      }

      @Override
      public Set<N> adjacentNodes(N node) {

  private fun requestIsOneShot(
    e: IOException,
    userRequest: Request,
  ): Boolean {
    val requestBody = userRequest.body
    return (requestBody != null && requestBody.isOneShot()) ||
      e is FileNotFoundException
  }

  private fun isRecoverable(
    e: IOException,
    requestSendStarted: Boolean,
  ): Boolean {
    // If there was a protocol problem, don't recover.
    if (e is ProtocolException) {

    private ScheduledFuture<?> cleanupTask;
    private volatile boolean shutdownInProgress = false;

    // Configuration
    private long maxResourceAge = TimeUnit.HOURS.toMillis(1); // 1 hour default
    private long cleanupInterval = TimeUnit.MINUTES.toMillis(5); // 5 minutes default
    private boolean leakDetectionEnabled = true;
    private boolean autoCleanupEnabled = true;

    /**

        }

        public boolean add(final E e) {
            return parent.add(e);
        }

        public boolean remove(final Object o) {
            return parent.remove(o);
        }

        public boolean containsAll(final Collection<?> c) {
            return parent.containsAll(c);
        }

        public boolean addAll(final Collection<? extends E> c) {

  override fun send(text: String): Boolean = send(text.encodeUtf8(), OPCODE_TEXT)

  override fun send(bytes: ByteString): Boolean = send(bytes, OPCODE_BINARY)

  @Synchronized private fun send(
    data: ByteString,
    formatOpcode: Int,
  ): Boolean {
    // Don't send new frames after we've failed or enqueued a close frame.

    fun verify(
      hostname: String?,
      session: SSLSession?,
    ): Boolean = true

    override fun verify(
      certs: Array<out X509Certificate>?,
      hostname: String?,
      session: SSLSession?,
    ): Boolean = true
  }

  override fun trustManager(sslSocketFactory: SSLSocketFactory): X509TrustManager? = null

  override fun configureTlsExtensions(