delegate().incidentEdges(node).iterator(),
              edge -> EndpointPair.of(delegate(), edge.nodeV(), edge.nodeU()));
        }
      };
    }

    @Override
    public int inDegree(N node) {
      return delegate().outDegree(node); // transpose
    }

    @Override
    public int outDegree(N node) {
      return delegate().inDegree(node); // transpose
    }

 */
internal class MockWebServerSocket(
  val javaNetSocket: Socket,
) : Closeable,
  BufferedSocket {
  private val delegate = javaNetSocket.asOkioSocket()
  private val closedLatch = CountDownLatch(2)

  override val source: BufferedSource =
    object : ForwardingSource(delegate.source) {
      private var closed = false

      override fun close() {
        if (closed) return
        try {

  protected ForwardingMapEntry() {}

  @Override
  protected abstract Entry<K, V> delegate();

  @Override
  @ParametricNullness
  public K getKey() {
    return delegate().getKey();
  }

  @Override
  @ParametricNullness
  public V getValue() {
    return delegate().getValue();
  }

  @Override
  @ParametricNullness
  @CanIgnoreReturnValue

      .Builder()
      .build()

  @Test
  fun getWithCustomSocketFactory() {
    assumeTrue(Build.VERSION.SDK_INT >= 24)

    class CustomSSLSocketFactory(
      delegate: SSLSocketFactory,
    ) : DelegatingSSLSocketFactory(delegate) {
      override fun configureSocket(sslSocket: SSLSocket): SSLSocket {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
          val parameters = sslSocket.sslParameters

/**
 * A RoutePlanner that will always establish a new connection, ignoring any connection pooling
 */
class ForceConnectRoutePlanner(
  private val delegate: RealRoutePlanner,
) : RoutePlanner by delegate {
  override fun plan(): RoutePlanner.Plan = delegate.planConnect() // not delegate.plan()

  /**
   * Returns the backing delegate instance that methods are forwarded to. Abstract subclasses
   * generally override this method with an abstract method that has a more specific return type,
   * such as {@link ForwardingSet#delegate}. Concrete subclasses override this method to supply the
   * instance being decorated.
   */
  protected abstract Object delegate();

  private final Equivalence<? super T> equivalence;
  private final RelationshipTester<T> delegate;
  private final List<T> items = new ArrayList<>();

  private EquivalenceTester(Equivalence<? super T> equivalence) {
    this.equivalence = checkNotNull(equivalence);
    this.delegate =
        new RelationshipTester<>(
            equivalence, "equivalent", "hash", /* itemReporter= */ Item::toString);
  }

    assertThat(body.bytes()).isEqualTo(text)
  }
}

abstract class ForwardingSource(
  val delegate: Source,
) : Source {
  override fun read(
    sink: Buffer,
    byteCount: Long,
  ): Long = delegate.read(sink, byteCount)

  override fun timeout() = delegate.timeout()

  override fun close() = delegate.close()

@NullUnmarked
class LockHeldAssertingSet<E> extends ForwardingSet<E> implements Serializable {
  final Set<E> delegate;
  final Object mutex;

  LockHeldAssertingSet(Set<E> delegate, Object mutex) {
    checkNotNull(mutex);
    this.delegate = delegate;
    this.mutex = mutex;
  }

  @Override
  protected Set<E> delegate() {
    return delegate;
  }

  @Override
  public String toString() {
    assertTrue(Thread.holdsLock(mutex));

  @Override
  protected abstract BlockingQueue<E> delegate();

  @CanIgnoreReturnValue
  @Override
  public int drainTo(Collection<? super E> c, int maxElements) {
    return delegate().drainTo(c, maxElements);
  }

  @CanIgnoreReturnValue
  @Override
  public int drainTo(Collection<? super E> c) {
    return delegate().drainTo(c);
  }

  @CanIgnoreReturnValue // TODO(kak): consider removing this