private val provider: Provider = BouncyCastleJsseProvider()

  override fun newSSLContext(): SSLContext = SSLContext.getInstance("TLS", provider)

  override fun platformTrustManager(): X509TrustManager {
    val factory =
      TrustManagerFactory.getInstance(
        "PKIX",
        BouncyCastleJsseProvider.PROVIDER_NAME,
      )
    factory.init(null as KeyStore?)

  // for version differences
  override fun newSSLContext(): SSLContext =
    // supports TLSv1.3 by default (version api is >= 1.4.0)
    SSLContext.getInstance("TLS", provider)

  override fun platformTrustManager(): X509TrustManager {
    val trustManagers =
      TrustManagerFactory
        .getInstance(TrustManagerFactory.getDefaultAlgorithm())
        .apply {
          init(null as KeyStore?)
        }.trustManagers!!

  // defaulted versions for TLS based on what is requested.
  override fun newSSLContext(): SSLContext = SSLContext.getInstance("TLSv1.3", provider)

  override fun platformTrustManager(): X509TrustManager {
    val factory =
      TrustManagerFactory.getInstance(
        TrustManagerFactory.getDefaultAlgorithm(),
        provider,
      )
    factory.init(null as KeyStore?)

        override fun connectFailed(
          uri: URI,
          socketAddress: SocketAddress,
          e: IOException,
        ) {}
      }

    val trustManager = get().platformTrustManager()
    val sslContext = get().newSSLContext()
    sslContext.init(null, null, null)

    // new client, may share all same fields but likely different connection pool
    assertNotSame(

 */
open class Platform {
  /** Prefix used on custom headers. */
  fun getPrefix() = "OkHttp"

  open fun newSSLContext(): SSLContext = SSLContext.getInstance("TLS")

  open fun platformTrustManager(): X509TrustManager {
    val factory =
      TrustManagerFactory.getInstance(
        TrustManagerFactory.getDefaultAlgorithm(),
      )
    factory.init(null as KeyStore?)

        object :
          DelegatingSSLSocketFactory(Platform.get().newSslSocketFactory(Platform.get().platformTrustManager())) {}

      override val badValue: SSLSocketFactory =
        object : DelegatingSSLSocketFactory(Platform.get().newSslSocketFactory(Platform.get().platformTrustManager())) {
          override fun configureSocket(sslSocket: SSLSocket): SSLSocket = TODO()
        }

      this.certificatePinner =
        builder.certificatePinner
          .withCertificateChainCleaner(certificateChainCleaner)
    } else {
      this.x509TrustManager = Platform.get().platformTrustManager()
      this.sslSocketFactoryOrNull = Platform.get().newSslSocketFactory(x509TrustManager)
      this.certificateChainCleaner = CertificateChainCleaner.get(x509TrustManager)
      this.certificatePinner =