```java
ConnectionSpec spec = new ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
    .tlsVersions(TlsVersion.TLS_1_2)
    .cipherSuites(
          CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
          CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,

  var proxyAuthenticator: Authenticator = RecordingOkAuthenticator("password", null)
  var connectionSpecs: List<ConnectionSpec> =
    listOf(
      ConnectionSpec.MODERN_TLS,
      ConnectionSpec.COMPATIBLE_TLS,
      ConnectionSpec.CLEARTEXT,
    )
  var protocols: List<Protocol> =
    listOf(
      Protocol.HTTP_1_1,
    )

}

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;

            if (socketMode.socketMode == Channel) {
              socketFactory(ChannelSocketFactory())
            }

            connectionSpecs(
              listOf(
                ConnectionSpec
                  .Builder(ConnectionSpec.COMPATIBLE_TLS)
                  .tlsVersions(socketMode.tlsVersion)
                  .supportsTlsExtensions(socketMode.tlsExtensionMode == STANDARD)
                  .build(),
              ),

    e is ProtocolException -> false

    // If there was an interruption or timeout (SocketTimeoutException), don't recover.
    // For the socket connect timeout case we do not try the same host with a different
    // ConnectionSpec: we assume it is unreachable.
    e is InterruptedIOException -> false

    // If the problem was a CertificateException from the X509TrustManager, do not retry.

HSPLokhttp3/ConnectionSpec$Builder;-><init>(Lokhttp3/ConnectionSpec;)V
HSPLokhttp3/ConnectionSpec$Builder;-><init>(Z)V
HSPLokhttp3/ConnectionSpec$Builder;->build()Lokhttp3/ConnectionSpec;
HSPLokhttp3/ConnectionSpec$Builder;->cipherSuites([Ljava/lang/String;)Lokhttp3/ConnectionSpec$Builder;
HSPLokhttp3/ConnectionSpec$Builder;->cipherSuites([Lokhttp3/CipherSuite;)Lokhttp3/ConnectionSpec$Builder;

   noCache, noStore, noTransform, onlyIfCached, sMaxAgeSeconds
 * **Challenge**: authParams, charset, realm, scheme
 * **CipherSuite**: javaName
 * **ConnectionSpec**: cipherSuites, supportsTlsExtensions, tlsVersions
 * **Cookie**: domain, expiresAt, hostOnly, httpOnly, name, path, persistent, value
 * **Dispatcher**: executorService
 * **FormBody**: size

  }

  companion object {
    internal val DEFAULT_PROTOCOLS = immutableListOf(HTTP_2, HTTP_1_1)

    internal val DEFAULT_CONNECTION_SPECS =
      immutableListOf(
        ConnectionSpec.MODERN_TLS,
        ConnectionSpec.CLEARTEXT,
      )
  }

        .hostnameVerifier(RecordingHostnameVerifier())
        .connectionSpecs(
          // Attempt RESTRICTED_TLS then fall back to MODERN_TLS.
          listOf(
            ConnectionSpec.RESTRICTED_TLS,
            ConnectionSpec.MODERN_TLS,
          ),
        ).sslSocketFactory(
          suppressTlsFallbackClientSocketFactory(),
          handshakeCertificates.trustManager,
        ).build()

 */
package okhttp3.internal.connection

import java.io.IOException
import java.net.HttpURLConnection
import java.net.Socket
import java.net.UnknownServiceException
import okhttp3.Address
import okhttp3.ConnectionSpec
import okhttp3.HttpUrl
import okhttp3.Protocol
import okhttp3.Request
import okhttp3.Response
import okhttp3.Route
import okhttp3.internal.USER_AGENT
import okhttp3.internal.canReuseConnectionFor