* quickly, possibly by handing off the provided request body to another thread to perform
   * writing.
   *
   * [grpc]: https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md
   */
  open fun isDuplex(): Boolean = false

  /**
   * Returns true if this body expects at most one call to [writeTo] and can be transmitted

	public final fun getHeadersDelay (Ljava/util/concurrent/TimeUnit;)J
	public final fun getHttp2ErrorCode ()I
	public final fun getPushPromises ()Ljava/util/List;
	public final fun getSettings ()Lokhttp3/internal/http2/Settings;
	public final fun getSocketPolicy ()Lokhttp3/mockwebserver/SocketPolicy;
	public final fun getStatus ()Ljava/lang/String;
	public final fun getThrottleBytesPerPeriod ()J

 * 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 java.io.EOFException
import java.io.IOException
import java.io.InterruptedIOException
import java.net.SocketTimeoutException
import java.util.ArrayDeque
import okhttp3.Headers

import java.io.File
import java.net.InetAddress
import java.net.InetSocketAddress
import java.net.UnknownHostException
import java.util.Arrays
import java.util.concurrent.ThreadFactory
import okhttp3.internal.http2.Header
import okio.Buffer
import okio.FileSystem
import org.junit.jupiter.api.Assumptions.assumeFalse
import org.junit.jupiter.api.Assumptions.assumeTrue

object TestUtil {
  @JvmField

import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.SocketEffect.CloseStream
import mockwebserver3.junit5.StartStop
import okhttp3.internal.http.RecordingProxySelector
import okhttp3.internal.http2.ErrorCode
import okhttp3.testing.PlatformRule
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.extension.RegisterExtension

@Burst
class RouteFailureTest {

 * 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 java.io.IOException
import okhttp3.internal.and
import okio.BufferedSink
import okio.BufferedSource
import okio.ByteString

/**
 * This class was originally composed from the following classes in

import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.ResponseBody.Companion.toResponseBody
import okhttp3.internal.http.ExchangeCodec.Companion.DISCARD_STREAM_TIMEOUT_MILLIS
import okhttp3.internal.http2.Http2Connection.Companion.OKHTTP_CLIENT_WINDOW_SIZE
import okhttp3.testing.PlatformRule
import okio.BufferedSource
import okio.IOException
import okio.Path.Companion.toPath
import okio.fakefilesystem.FakeFileSystem

import mockwebserver3.MockWebServer
import mockwebserver3.SocketEffect.CloseStream
import okhttp3.CallEvent.ConnectEnd
import okhttp3.CallEvent.ConnectFailed
import okhttp3.CallEvent.ConnectStart
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

import okhttp3.CallEvent.ProxySelectStart
import okhttp3.CallEvent.SecureConnectStart
import okhttp3.EventRecorder
import okhttp3.OkHttpClient
import okhttp3.OkHttpClientTestRule
import okhttp3.Request
import okhttp3.internal.http2.ConnectionShutdownException
import okhttp3.testing.Flaky
import okhttp3.testing.PlatformRule
import okhttp3.tls.HandshakeCertificates
import okhttp3.tls.HeldCertificate
import okhttp3.tls.internal.TlsUtil.newKeyManager

import okhttp3.Dispatcher
import okhttp3.EventListener
import okhttp3.Headers
import okhttp3.HttpUrl
import okhttp3.HttpUrl.Companion.defaultPort
import okhttp3.OkHttpClient
import okhttp3.Response
import okhttp3.internal.http2.Header
import okio.Buffer
import okio.BufferedSource
import okio.Source

/** GMT and UTC are equivalent for our purposes. */
@JvmField
internal val UTC: TimeZone = TimeZone.getTimeZone("GMT")!!