responses: MutableList<InetAddress>,
    failures: MutableList<Exception>,
  ) {
    val latch = CountDownLatch(networkRequests.size)

    for (call in networkRequests) {
      call.enqueue(
        object : Callback {
          override fun onFailure(
            call: Call,
            e: IOException,
          ) {
            synchronized(failures) {
              failures.add(e)

  val expectedModernTls13CipherSuites = listOf(TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_AES_128_GCM_SHA256, TLS_AES_256_GCM_SHA384)

  @BeforeEach
  fun setup() {
    server.enqueue(MockResponse())

    client =
      clientTestRule
        .newClientBuilder()
        .sslSocketFactory(
          handshakeCertificates.sslSocketFactory(),
          handshakeCertificates.trustManager,

// "fifo_queue_dequeue_<tensor_id>", to be executed by this API call.

// Caller must call TF_DeleteTensor() over the returned tensor. If the queue is
// empty, this call is blocked.
//
// Tensors are enqueued via the corresponding TF enqueue op.
// TODO(hongm): Add support for `timeout_ms`.
TF_CAPI_EXPORT extern TF_Tensor* TF_DequeueNamedTensor(TF_Session* session,

    .heldCertificate(serverCertificate)
    .build();
MockWebServer server = new MockWebServer();
server.useHttps(serverCertificates.sslSocketFactory(), false);
server.requestClientAuth();
server.enqueue(new MockResponse());

// Create a client certificate and a client that uses it.
HeldCertificate clientCertificate = new HeldCertificate.Builder()
    .commonName("ianmalcolm")
    .signedBy(rootCertificate)

        .build()
    assertThat(okHttpClient.protocols.size).isEqualTo(1)
    assertThat(okHttpClient.protocols[0]).isEqualTo(Protocol.H2_PRIOR_KNOWLEDGE)
  }

  @Test fun nullDefaultProxySelector() {
    server!!.enqueue(MockResponse(body = "abc"))
    ProxySelector.setDefault(null)
    val client = clientTestRule.newClient()
    val request = Request(server!!.url("/"))
    val response = client.newCall(request).execute()

#### Do-stuff-later pool

Sometimes there's an action required like calling the application layer or responding to a ping, and the thread discovering the action is not the thread that should do the work. We enqueue a runnable on this executor and it gets handled by one of the executor's threads.

### Locks

We have 3 different things that we synchronize on.

#### Http2Connection

	public final fun -deprecated_requestCount ()I
	public final fun -deprecated_serverSocketFactory (Ljavax/net/ServerSocketFactory;)V
	public fun <init> ()V
	public fun close ()V
	public final fun enqueue (Lokhttp3/mockwebserver/MockResponse;)V
	public final fun getBodyLimit ()J
	public final fun getDelegate ()Lmockwebserver3/MockWebServer;
	public final fun getDispatcher ()Lokhttp3/mockwebserver/Dispatcher;

              }
            },
            directExecutor()));
    thingToCancel[0] = serializer.submit(Callables.returning(null), directExecutor());
    results.add(thingToCancel[0]);
    // Enqueue more than enough tasks to force reentrancy.
    for (int i = 0; i < 5; i++) {
      results.add(serializer.submit(Callables.returning(null), directExecutor()));
    }

    manualExecutorTask[0].run();

 * try (Response response = call.execute()) {
 * ... // Use the response.
 * }
 * ```
 *
 * You can use a similar block for asynchronous calls:
 *
 * ```java
 * Call call = client.newCall(request);
 * call.enqueue(new Callback() {
 *   public void onResponse(Call call, Response response) throws IOException {
 *     try (ResponseBody responseBody = response.body()) {
 *     ... // Use the response.
 *     }
 *   }
 *

  }

  @Test
  fun call() {
    val call: Call =
      object : Call {
        override fun request(): Request = TODO()

        override fun execute(): Response = TODO()

        override fun enqueue(responseCallback: Callback) = TODO()

        override fun cancel() = TODO()

        override fun isExecuted(): Boolean = TODO()

        override fun isCanceled(): Boolean = TODO()