get() = "Dalvik" == System.getProperty("java.vm.name")

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

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

 * limitations under the License.
 */
package okhttp3

import java.net.InetAddress
import java.net.UnknownHostException
import okhttp3.Dns.Companion.SYSTEM

/**
 * A domain name service that resolves IP addresses for host names. Most applications will use the
 * [system DNS service][SYSTEM], which is the default. Some applications may provide their own

    Android 10. Android uses reflection to look up a magic `checkServerTrusted()` method and we
    didn't have it.
 *  Fix: Explicitly specify the remote server name when making HTTPS connections on Android 5. In
    4.3.0 we introduced a regression where server name indication (SNI) was broken on Android 5.


## Version 4.3.0

_2019-12-31_

 */
package okhttp3.internal.idn

import okio.Buffer
import okio.ByteString.Companion.encodeUtf8

/**
 * An [RFC 3492] punycode decoder for converting ASCII to Unicode domain name labels. This is
 * intended for use in Internationalized Domain Names (IDNs).
 *
 * This class contains a Kotlin implementation of the pseudocode specified by RFC 3492. It includes
 * direct translation of the pseudocode presented there.
 *

    derWriter.write(
      name = "test",
      tagClass = DerHeader.TAG_CLASS_UNIVERSAL,
      tag = 16L,
    ) {
      derWriter.write(
        name = "test",
        tagClass = DerHeader.TAG_CLASS_UNIVERSAL,
        tag = 21L,
      ) {
        derWriter.writeOctetString("Smith".encodeUtf8())
      }

      derWriter.write(
        name = "test",

  }

  @Test
  fun hostnameMappingLastDisallowedCodePoint() {
    assertInvalid("http://\uDBFF\uDFFF", "Invalid URL host: \"\uDBFF\uDFFF\"")
  }

  @Test
  fun hostnameUri() {
    // Host names are special:
    //
    //  * Several characters are forbidden and must throw exceptions if used.
    //  * They don't use percent escaping at all.
    //  * They use punycode for internationalization.

    fun setHeader(
      name: String,
      value: Any,
    ) = apply {
      removeHeader(name)
      addHeader(name, value)
    }

    /** Removes all headers named [name]. */
    fun removeHeader(name: String) =
      apply {
        headers.removeAll(name)
      }

    fun body(body: Buffer) = body(body.toMockResponseBody())

  ): Any {
    val nameAnnotation = parameterContext.findAnnotation(MockWebServerInstance::class.java)
    val name =
      if (nameAnnotation.isPresent) {
        nameAnnotation.get().name
      } else {
        defaultName
      }
    return extensionContext.resource.server(name)
  }

  /** Start the servers passed in as test method parameters. */
  override fun beforeEach(context: ExtensionContext) {

Regression Test
===============

A gradle module for running Regression tests on a device, emulator or JVM.

1. Add an Emulator named `pixel5`, if you don't already have one

```
$ sdkmanager --install "system-images;android-29;google_apis;x86"
$ echo "no" | avdmanager --verbose create avd --force --name "pixel5" --device "pixel" --package "system-images;android-29;google_apis;x86" --tag "google_apis" --abi "x86"
```

        this.handshake = handshake
      }

    /**
     * Sets the header named [name] to [value]. If this request already has any headers
     * with that name, they are all replaced.
     */
    open fun header(
      name: String,
      value: String,
    ) = commonHeader(name, value)

    /**
     * Adds a header with [name] to [value]. Prefer this method for multiply-valued
     * headers like "Set-Cookie".