}

public final class okhttp3/ConnectionSpec {
	public static final field CLEARTEXT Lokhttp3/ConnectionSpec;
	public static final field COMPATIBLE_TLS Lokhttp3/ConnectionSpec;
	public static final field Companion Lokhttp3/ConnectionSpec$Companion;
	public static final field MODERN_TLS Lokhttp3/ConnectionSpec;
	public static final field RESTRICTED_TLS Lokhttp3/ConnectionSpec;

    client =
      client.newBuilder()
        .hostnameVerifier(
          RecordingHostnameVerifier(),
        ) // Attempt RESTRICTED_TLS then fall back to MODERN_TLS.
        .connectionSpecs(Arrays.asList(ConnectionSpec.RESTRICTED_TLS, ConnectionSpec.MODERN_TLS))
        .sslSocketFactory(
          suppressTlsFallbackClientSocketFactory(),
          handshakeCertificates.trustManager,
        )
        .build()

    configure OkHttp 3.13 to allow TLSv1 and TLSv1.1 connections:

    ```
    OkHttpClient client = new OkHttpClient.Builder()
        .connectionSpecs(Arrays.asList(ConnectionSpec.COMPATIBLE_TLS))
        .build();
    ```

 *  New: You can now access HTTP trailers with `Response.trailers()`. This method may only be called
    after the entire HTTP response body has been read.

    internal constructor(tls: Boolean) {
      this.tls = tls
    }

    constructor(connectionSpec: ConnectionSpec) {
      this.tls = connectionSpec.isTls
      this.cipherSuites = connectionSpec.cipherSuitesAsString
      this.tlsVersions = connectionSpec.tlsVersionsAsString
      this.supportsTlsExtensions = connectionSpec.supportsTlsExtensions
    }

    fun allEnabledCipherSuites() =
      apply {

    val allCipherSuites =
      ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
        .allEnabledCipherSuites()
        .build()
    val allTlsVersions =
      ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
        .allEnabledTlsVersions()
        .build()
    val set: MutableSet<Any> = CopyOnWriteArraySet()
    assertThat(set.add(ConnectionSpec.MODERN_TLS)).isTrue()

  return Client(
    userAgent = "OkHttp",
    version = OkHttp.VERSION,
    enabled =
      ConnectionSpec.MODERN_TLS.cipherSuites!!.map {
        ianaSuites.fromJavaName(it.javaName)
      },
    supported =
      ConnectionSpec.COMPATIBLE_TLS.cipherSuites!!.map {
        ianaSuites.fromJavaName(it.javaName)
      },
  )
}

fun historicOkHttp(version: String): Client {
  val enabled =

    socket.enabledCipherSuites = arrayOf("SSL_A", "SSL_B", "SSL_C")
    val connectionSpec =
      ConnectionSpec.Builder(true)
        .tlsVersions(TlsVersion.TLS_1_0)
        .cipherSuites("TLS_A", "TLS_C", "TLS_E")
        .build()
    applyConnectionSpec(connectionSpec, socket, false)
    assertArrayEquals(arrayOf("TLS_A", "TLS_C"), socket.enabledCipherSuites)
  }

  @Test

internal fun cacheGet(
  cache: Cache,
  request: Request,
): Response? = cache.get(request)

internal fun applyConnectionSpec(
  connectionSpec: ConnectionSpec,
  sslSocket: SSLSocket,
  isFallback: Boolean,
) = connectionSpec.apply(sslSocket, isFallback)

internal fun ConnectionSpec.effectiveCipherSuites(socketEnabledCipherSuites: Array<String>): Array<String> {
  return if (cipherSuitesAsString != null) {

    `ConnectionSpec` class.

    To disable TLS fallback:

    ```java
    client.setConnectionSpecs(Arrays.asList(
        ConnectionSpec.MODERN_TLS, ConnectionSpec.CLEARTEXT));
    ```

    To disable cleartext connections, permitting `https` URLs only:

    ```java
    client.setConnectionSpecs(Arrays.asList(
        ConnectionSpec.MODERN_TLS, ConnectionSpec.COMPATIBLE_TLS));

 *     [RealConnection.isEligible] for details.
 *
 *  3. Attempt plans from prior connect attempts for this call. These occur as either follow-ups to
 *     failed connect attempts (such as trying the next [ConnectionSpec]), or as attempts that lost
 *     a race in fast follow-up.
 *
 *  4. If there's no existing connection, make a list of routes (which may require blocking DNS