assertEquals(TlsVersion.TLS_1_3, response.handshake?.tlsVersion)
    assertEquals(Protocol.HTTP_2, response.protocol)
  }

  @Test
  fun testMockWebserverRequest() {
    enableTls()

    server.enqueue(MockResponse(body = "abc"))

    val request = Request.Builder().url(server.url("/")).build()

    val response = client.newCall(request).execute()

    response.use {

    )
  }

  @Test
  fun upgradeHttps() {
    // org.bouncycastle.tls.TlsNoCloseNotifyException: No close_notify alert received before connection closed
    platform.assumeNotBouncyCastle()

    enableTls(Protocol.HTTP_1_1)
    upgrade()
  }

  @Test
  fun upgradeRefusedByServer() {
    server.enqueue(MockResponse(body = "normal request"))
    val requestWithUpgrade =
      Request
        .Builder()

      }

      OverrideParam.SslSocketFactory -> {
        enableTls()
        overrideBadImplementation(
          override = Override.SslSocketFactoryOverride,
          testItFails = testItFails,
          goodValue = handshakeCertificates.sslSocketFactory(),
        )
      }

      OverrideParam.X509TrustManager -> {
        enableTls()
        overrideBadImplementation(

    // https://docs.oracle.com/en/java/javase/14/security/java-secure-socket-extension-jsse-reference-guide.html
    // TODO test jdk.tls.client.enableSessionTicketExtension
    // TODO check debugging information

    enableTls()

    server.enqueue(MockResponse(body = "abc"))

    val request = Request(server.url("/"))

    val response = client.newCall(request).execute()

    response.use {
      assertEquals(200, response.code)

  }

  @Test
  fun tls() {
    enableTls()
    server.enqueue(
      MockResponse(
        headers = headersOf("Content-Type", "text/plain"),
        body = "abc",
      ),
    )
    executeSynchronously("/").assertHandshake()
  }

  @Test
  fun tls_Async() {
    enableTls()
    server.enqueue(
      MockResponse(

    }
  }

  private fun enableProtocol(protocol: Protocol) {
    enableTls()
    client =
      client
        .newBuilder()
        .protocols(listOf(protocol, Protocol.HTTP_1_1))
        .build()
    server.protocols = client.protocols
  }

  private fun enableTls() {
    client =
      client
        .newBuilder()
        .sslSocketFactory(

  private fun enableProtocol(protocol: Protocol) {
    if (protocol == Protocol.HTTP_2) {
      enableTls()
      client =
        client
          .newBuilder()
          .protocols(listOf(protocol, Protocol.HTTP_1_1))
          .build()
      server.protocols = client.protocols
    }
  }

  private fun enableTls() {
    val handshakeCertificates = platform.localhostHandshakeCertificates()
    client =

# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
# Enables RBE as long as RBE is available for the selected platform.
# The "selected" platform is considered to be
# TFCI_BAZEL_TARGET_SELECTING_CONFIG_PREFIX. "Available" means there is

OkHttp Zstandard (zstd) Integration
===================================

This module enables [Zstandard (zstd)][1] response compression in addition to Gzip, as long as
the `Accept-Encoding` header is not otherwise set. Web servers must be configured to return zstd
responses.

Note that zstd is not used for sending requests.

```java
OkHttpClient client = new OkHttpClient.Builder()
  .addInterceptor(CompressionInterceptor(Zstd, Gzip))
  .build();

      assertBitEquals(prev, at.get());
      assertTrue(at.compareAndSet(prev, x));
      assertBitEquals(x, at.get());
      prev = x;
    }
  }

  /** compareAndSet in one thread enables another waiting for value to succeed */
  public void testCompareAndSetInMultipleThreads() throws Exception {
    AtomicDouble at = new AtomicDouble(1.0);
    Thread t =
        newStartedThread(