* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.internal.http2

import okhttp3.internal.format
import okio.ByteString.Companion.encodeUtf8

object Http2 {
  @JvmField
  val CONNECTION_PREFACE = "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n".encodeUtf8()

import kotlin.test.assertFailsWith
import okhttp3.tls.internal.der.CertificateAdapters.generalNameDnsName
import okhttp3.tls.internal.der.CertificateAdapters.generalNameIpAddress
import okhttp3.tls.internal.der.ObjectIdentifiers.BASIC_CONSTRAINTS
import okhttp3.tls.internal.der.ObjectIdentifiers.COMMON_NAME
import okhttp3.tls.internal.der.ObjectIdentifiers.SHA256_WITH_RSA_ENCRYPTION
import okhttp3.tls.internal.der.ObjectIdentifiers.SUBJECT_ALTERNATIVE_NAME

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3

import assertk.assertThat
import assertk.assertions.containsExactly
import assertk.assertions.isEqualTo
import java.time.Instant
import java.util.Date
import kotlin.test.assertFailsWith
import okhttp3.Headers.Companion.toHeaders
import org.junit.jupiter.api.Test

class HeadersJvmTest {
  @Test fun byteCount() {

OkHttp DNS over HTTPS Implementation
====================================

This module is an implementation of [DNS over HTTPS][1] using OkHttp.

### Download

```kotlin
testImplementation("com.squareup.okhttp3:okhttp-dnsoverhttps:5.1.0")
```

### Usage

```
  val appCache = Cache(File("cacheDir", "okhttpcache"), 10 * 1024 * 1024)
  val bootstrapClient = OkHttpClient.Builder().cache(appCache).build()

```

```kotlin
implementation("com.squareup.okhttp3:okhttp-brotli:5.1.0")
```

 * limitations under the License.
 */
package okhttp3.internal.platform

import java.security.NoSuchAlgorithmException
import javax.net.ssl.SSLContext
import javax.net.ssl.SSLSocket
import javax.net.ssl.SSLSocketFactory
import javax.net.ssl.X509TrustManager
import okhttp3.Protocol
import okhttp3.internal.SuppressSignatureCheck

/**
 * OpenJDK 9+ and JDK8 build 252+.
 *

import javax.net.SocketFactory
import kotlin.test.assertFailsWith
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.SocketEffect.CloseStream
import okhttp3.internal.http2.ErrorCode
import okhttp3.testing.Flaky
import org.junit.jupiter.api.AfterEach
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.Timeout

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3

import kotlinx.serialization.Serializable
import kotlinx.serialization.decodeFromString
import kotlinx.serialization.json.Json

/**

Subclass [EventListener](https://square.github.io/okhttp/3.x/okhttp/okhttp3/EventListener.html) and override methods for the events you are interested in. In a successful HTTP call with no redirects or retries the sequence of events is described by this flow.

![Events Diagram](../assets/images/******@****.***)

 [okio]: https://square.github.io/okio/...