throw ProtocolException("Unexpected status line: $statusLine")
        }
        val httpMinorVersion = statusLine[7] - '0'
        codeStart = 9
        protocol =
          when (httpMinorVersion) {
            0 -> Protocol.HTTP_1_0
            1 -> Protocol.HTTP_1_1
            else -> throw ProtocolException("Unexpected status line: $statusLine")
          }

            partCount++
            break@afterBoundaryLoop
          }

          1 -> {
            // "--": No more parts.
            if (whitespace) throw ProtocolException("unexpected characters after boundary")
            if (partCount == 0) throw ProtocolException("expected at least 1 part")
            noMoreParts = true
            return null
          }

          2, 3 -> {

        fromSink.emit()
      }
      else -> throw ProtocolException("unsupported method: $selectedMethod")
    }
  }

  private fun acceptCommand(
    fromAddress: InetAddress,
    fromSource: BufferedSource,
    fromSink: BufferedSink,
  ) {
    // Read the command.
    val version = fromSource.readByte() and 0xff
    if (version != VERSION_5) throw ProtocolException("unexpected version: $version")

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

import java.io.IOException
import java.net.ProtocolException
import okhttp3.EventListener
import okhttp3.Headers
import okhttp3.Request
import okhttp3.Response
import okhttp3.ResponseBody
import okhttp3.internal.http.ExchangeCodec

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

import java.io.IOException
import java.net.ProtocolException
import okhttp3.Headers
import okhttp3.Interceptor
import okhttp3.Response
import okhttp3.TrailersSource
import okhttp3.internal.UnreadableResponseBody
import okhttp3.internal.http2.ConnectionShutdownException

import okhttp3.RecordingHostnameVerifier
import okhttp3.Request
import okhttp3.RequestBody.Companion.toRequestBody
import okhttp3.internal.duplex.MockSocketHandler
import okhttp3.testing.PlatformRule
import okio.ProtocolException
import okio.buffer
import okio.use
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.extension.RegisterExtension

class HttpUpgradesTest {
  @RegisterExtension
  val platform = PlatformRule()

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

import java.net.ProtocolException

/**
 * Handles basic types that always use the same tag. This supports optional types and may set a type
 * hint for further adapters to process.
 *

 * limitations under the License.
 */
package mockwebserver3.internal

import java.io.IOException
import java.net.Inet6Address
import java.net.ProtocolException
import mockwebserver3.RecordedRequest
import okhttp3.Headers
import okhttp3.HttpUrl
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
import okio.ByteString

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

import java.io.InterruptedIOException
import java.net.ProtocolException
import java.security.cert.CertificateException
import javax.net.ssl.SSLException
import javax.net.ssl.SSLHandshakeException
import javax.net.ssl.SSLPeerUnverifiedException
import okio.IOException

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.internal.http2

import java.io.IOException
import java.net.ProtocolException
import java.util.Locale
import java.util.concurrent.TimeUnit
import okhttp3.Headers
import okhttp3.OkHttpClient
import okhttp3.Protocol
import okhttp3.Request
import okhttp3.Response