val names = alpnProtocolNames(protocols)

    sslParameters.applicationProtocols = names.toTypedArray()

    sslSocket.sslParameters = sslParameters
  }

  @SuppressSignatureCheck
  override fun getSelectedProtocol(sslSocket: SSLSocket): String? =
    try {
      // SSLSocket.getApplicationProtocol returns "" if application protocols values will not

    )

  override fun configureTlsExtensions(
    sslSocket: SSLSocket,
    hostname: String?,
    protocols: List<@JvmSuppressWildcards Protocol>,
  ) {
    if (sslSocket is BCSSLSocket) {
      val sslParameters = sslSocket.parameters

      // Enable ALPN.
      val names = alpnProtocolNames(protocols)
      sslParameters.applicationProtocols = names.toTypedArray()

      sslSocket.parameters = sslParameters

 */
package okhttp3.internal.http

import okhttp3.OkHttpClient
import okhttp3.Protocol
import okhttp3.Request

object ExternalHttp2Example {
  @JvmStatic
  fun main(args: Array<String>) {
    val client =
      OkHttpClient
        .Builder()
        .protocols(listOf(Protocol.HTTP_2, Protocol.HTTP_1_1))
        .build()
    val call =
      client.newCall(
        Request
          .Builder()

     *
     * @param protocols the protocols to use, in order of preference. If the list contains
     *     [Protocol.H2_PRIOR_KNOWLEDGE] then that must be the only protocol and HTTPS URLs will not
     *     be supported. Otherwise the list must contain [Protocol.HTTP_1_1]. The list must
     *     not contain null or [Protocol.HTTP_1_0].
     */
    fun protocols(protocols: List<Protocol>) =
      apply {

    sslSocket: SSLSocket,
    hostname: String?,
    protocols: List<Protocol>,
  ) {
    // No TLS extensions if the socket class is custom.
    if (matchesSocket(sslSocket)) {
      // Enable session tickets.
      Conscrypt.setUseSessionTickets(sslSocket, true)

      // Enable ALPN.
      val names = Platform.alpnProtocolNames(protocols)
      Conscrypt.setApplicationProtocols(sslSocket, names.toTypedArray())
    }

    val url: HttpUrl = mockWebServer.url("")
    mockWebServer.bodyLimit = 0L
    mockWebServer.protocolNegotiationEnabled = false
    mockWebServer.protocols = listOf()
    val protocols: List<Protocol> = mockWebServer.protocols
    mockWebServer.useHttps(SSLSocketFactory.getDefault() as SSLSocketFactory, false)
    mockWebServer.noClientAuth()
    mockWebServer.requestClientAuth()

      assertThat(response.body.string()).isEqualTo("healthy")
    }
  }

  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()

  }

  @Test
  fun testH2PriorKnowledgeServerFallback() {
    try {
      server.protocols = Arrays.asList(Protocol.H2_PRIOR_KNOWLEDGE, Protocol.HTTP_1_1)
      fail<Any>()
    } catch (expected: IllegalArgumentException) {
      assertThat(expected.message).isEqualTo(
        "protocols containing h2_prior_knowledge cannot use other protocols: " +
          "[h2_prior_knowledge, http/1.1]",
      )
    }
  }

  @Test

   */
  public var protocols: List<Protocol> = immutableListOf(Protocol.HTTP_2, Protocol.HTTP_1_1)
    set(value) {
      val protocolList = value.toImmutableList()
      require(Protocol.H2_PRIOR_KNOWLEDGE !in protocolList || protocolList.size == 1) {
        "protocols containing h2_prior_knowledge cannot use other protocols: $protocolList"
      }

        final Smb2TransformHeader header = new Smb2TransformHeader();

        // Check protocol ID
        final int protocolId = SMBUtil.readInt4(buffer, bufferIndex);
        if (protocolId != TRANSFORM_PROTOCOL_ID) {
            throw new IllegalArgumentException("Invalid transform header protocol ID: 0x" + Integer.toHexString(protocolId));
        }
        bufferIndex += 4;

        // Read signature