}

data class TlsInstance(
  val provider: Provider,
  val protocol: Protocol,
  val tlsVersion: TlsVersion,
  val socketMode: SocketMode,
  val tlsExtensionMode: TlsExtensionMode,
) : SocketMode() {
  override fun toString(): String = "$provider/$protocol/$tlsVersion/$socketMode/$tlsExtensionMode"
}

enum class Provider {
  JSSE,
  CONSCRYPT,
}

              ConnectionSpec
                .Builder(connectionSpec)
                .apply {
                  if (tlsVersion != null) {
                    tlsVersions(tlsVersion)
                  }
                  if (cipherSuites != null) {
                    cipherSuites(*cipherSuites.toTypedArray())
                  }
                }.build(),
            ),
          )
        }

}

public final class okhttp3/TlsVersion : java/lang/Enum {
	public static final field Companion Lokhttp3/TlsVersion$Companion;
	public static final field SSL_3_0 Lokhttp3/TlsVersion;
	public static final field TLS_1_0 Lokhttp3/TlsVersion;
	public static final field TLS_1_1 Lokhttp3/TlsVersion;
	public static final field TLS_1_2 Lokhttp3/TlsVersion;
	public static final field TLS_1_3 Lokhttp3/TlsVersion;

```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,
          CipherSuite.TLS_DHE_RSA_WITH_AES_128_GCM_SHA256)

}

public final class okhttp3/TlsVersion : java/lang/Enum {
	public static final field Companion Lokhttp3/TlsVersion$Companion;
	public static final field SSL_3_0 Lokhttp3/TlsVersion;
	public static final field TLS_1_0 Lokhttp3/TlsVersion;
	public static final field TLS_1_1 Lokhttp3/TlsVersion;
	public static final field TLS_1_2 Lokhttp3/TlsVersion;
	public static final field TLS_1_3 Lokhttp3/TlsVersion;

    val tlsVersions: Set<TlsVersion?> =
      EnumSet.of(
        TlsVersion.TLS_1_0,
        TlsVersion.TLS_1_2,
        TlsVersion.TLS_1_3,
      ) // v1.2 on OpenJDK 8.
    val request1 = server.takeRequest()
    assertThat(tlsVersions).contains(request1.handshake?.tlsVersion)
    val request2 = server.takeRequest()
    assertThat(tlsVersions).contains(request2.handshake?.tlsVersion)
  }

HSPLokhttp3/ConnectionSpec$Builder;->supportsTlsExtensions(Z)Lokhttp3/ConnectionSpec$Builder;
HSPLokhttp3/ConnectionSpec$Builder;->tlsVersions([Ljava/lang/String;)Lokhttp3/ConnectionSpec$Builder;
HSPLokhttp3/ConnectionSpec$Builder;->tlsVersions([Lokhttp3/TlsVersion;)Lokhttp3/ConnectionSpec$Builder;
HSPLokhttp3/ConnectionSpec;-><clinit>()V
HSPLokhttp3/ConnectionSpec;-><init>(ZZ[Ljava/lang/String;[Ljava/lang/String;)V

 * limitations under the License.
 */
package okhttp3

/**
 * Versions of TLS that can be offered when negotiating a secure socket. See
 * [javax.net.ssl.SSLSocket.setEnabledProtocols].
 */
enum class TlsVersion(
  @get:JvmName("javaName") val javaName: String,
) {
  TLS_1_3("TLSv1.3"), // 2016.
  TLS_1_2("TLSv1.2"), // 2008.
  TLS_1_1("TLSv1.1"), // 2006.
  TLS_1_0("TLSv1"), // 1999.
  SSL_3_0("SSLv3"), // 1996.
  ;

      assertThat(it.handshake!!.tlsVersion).isEqualTo(TlsVersion.TLS_1_3)
    }

    client.connectionPool.evictAll()
    assertEquals(0, client.connectionPool.connectionCount())

    client.newCall(request).execute().use {
      assertThat(it.protocol).isEqualTo(Protocol.HTTP_2)
      assertThat(it.handshake!!.tlsVersion).isEqualTo(TlsVersion.TLS_1_3)
    }

    assertEquals(2, sessionIds.size)

      assertThat(it.handshake!!.tlsVersion).isEqualTo(TlsVersion.TLS_1_3)
    }
  }

  @Test
  @Disabled
  fun testGoogle() {
    assumeNetwork()

    val request = Request.Builder().url("https://google.com/robots.txt").build()

    client.newCall(request).execute().use {
      assertThat(it.protocol).isEqualTo(Protocol.HTTP_2)
      if (it.handshake!!.tlsVersion != TlsVersion.TLS_1_3) {