// This explicit check avoids activating in Android Studio with Android specific classes
    // available when running plugins inside the IDE.
    val isAndroid: Boolean
      get() = "Dalvik" == System.getProperty("java.vm.name")

    private val isConscryptPreferred: Boolean
      get() {
        val preferredProvider = Security.getProviders()[0].name
        return "Conscrypt" == preferredProvider
      }

  return Client(
    userAgent = "OkHttp",
    version = version,
    enabled = enabled,
  )
}

fun currentVm(ianaSuites: IanaSuites): Client {
  return systemDefault(
    name = System.getProperty("java.vm.name"),
    version = System.getProperty("java.version"),
    ianaSuites = ianaSuites,
  )
}

fun conscrypt(ianaSuites: IanaSuites): Client {
  val version = Conscrypt.version()
  return systemDefault(

  // System.setProperty("javax.net.debug", "ssl:handshake:verbose");
  Security.insertProviderAt(Conscrypt.newProviderBuilder().provideTrustManager().build(), 1)
  println("Running tests using ${Platform.get()} ${System.getProperty("java.vm.version")}")

  // https://github.com/tlswg/tls13-spec/wiki/Implementations
  val urls =
    listOf(
      "https://enabled.tls13.com",
      "https://www.howsmyssl.com/a/check",
      "https://tls13.cloudflare.com",

    of our effort to remove the okhttp-tls module's dependency on Bouncy Castle. We think Bouncy
    Castle is great! But it's a large dependency (6.5 MiB) and its security provider feature
    impacts VM-wide behavior.

 *  New: Reduce contention for applications that make a very high number of concurrent requests.
    Previously OkHttp used its connection pool as a lock when making changes to connections and

    in 161..181 -> "8.1.12.v20180117"
    in 191..242 -> "8.1.13.v20181017"
    else -> null
  }
}

/**
 * Returns the alpn-boot version specific to this OpenJDK 8 JVM, or null if this is not a Java 8 VM.
 * https://github.com/xjdr/xio/blob/master/alpn-boot.gradle
 */
fun alpnBootVersion(): String? {
  val version = System.getProperty("alpn.boot.version")

  if (version != null) {
    return version
  }

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