override fun request(): Request = TODO()

        override fun execute(): Response = TODO()

        override fun enqueue(responseCallback: Callback) = TODO()

        override fun cancel() = TODO()

        override fun isExecuted(): Boolean = TODO()

        override fun isCanceled(): Boolean = TODO()

        override fun timeout(): Timeout = TODO()

        override fun clone(): Call = TODO()

 *  Fix: Don't call `EventListener.responseHeadersStart()` or `responseBodyStart()` until bytes have
    been received. Previously these events were incorrectly sent too early, when OkHttp was ready to
    read the response headers or body, which mislead tracing tools. Note that the `responseFailed()`
    event always used to follow one of these events; now it may be sent without them.

      dns.lookup("google.com")
      fail<Any>()
    } catch (ioe: IOException) {
      assertThat(ioe).hasMessage("google.com")
      assertThat(ioe.cause!!).isInstanceOf<EOFException>()
    }
  }

  // TODO GET preferred order - with tests to confirm this
  // 1. successful fresh cached GET response
  // 2. unsuccessful (404, 500) fresh cached GET response
  // 3. successful network response

      this.withLock {
        if (isShutdown) {
          return
        }
        isShutdown = true
        lastGoodStreamId = this.lastGoodStreamId
      }
      // TODO: propagate exception message into debugData.
      // TODO: configure a timeout on the reader so that it doesn’t block forever.
      writer.goAway(lastGoodStreamId, statusCode, EMPTY_BYTE_ARRAY)
    }
  }

  /**

    override fun close() {
      val bytesDiscarded: Long
      ******@****.***ck {
        closed = true
        bytesDiscarded = readBuffer.size
        readBuffer.clear()
        condition.signalAll() // TODO(jwilson): Unnecessary?
      }
      if (bytesDiscarded > 0L) {
        updateConnectionFlowControl(bytesDiscarded)
      }
      cancelStreamIfNecessary()
    }
  }

  @Throws(IOException::class)

    try {
      val connection = exchangeFinderFactory(this, state.address, PoolConnectionUser).find()

      // RealRoutePlanner will add the connection to the pool itself, other RoutePlanners may not
      // TODO: make all RoutePlanners consistent in this behavior
      if (connection !in connections) {
        connection.withLock { put(connection) }
      }

            response.closeQuietly()
            exchange?.webSocketUpgradeFailed()
            return
          }

          // Apply the extensions. If they're unacceptable initiate a graceful shut down.
          // TODO(jwilson): Listeners should get onFailure() instead of onClosing() + onClosed(1010).
          val extensions = WebSocketExtensions.parse(response.headers)
          ******@****.***ions = extensions

        // that it will almost certainly fail because the proxy has sent unexpected data.
        if (source?.buffer?.exhausted() == false || sink?.buffer?.exhausted() == false) {
          throw IOException("TLS tunnel buffered too many bytes!")
        }

        user.secureConnectStart()

        // Create the wrapper over the connected socket.
        val sslSocket =
          route.address.sslSocketFactory.createSocket(

      if (networkResponse == null && cacheCandidate != null) {
        cacheCandidate.body.closeQuietly()
      }
    }

    // If we have a cache response too, then we're doing a conditional get.
    if (cacheResponse != null) {
      if (networkResponse?.code == HTTP_NOT_MODIFIED) {
        val response =
          cacheResponse.newBuilder()

import java.net.HttpURLConnection.HTTP_NOT_IMPLEMENTED
import java.net.HttpURLConnection.HTTP_NO_CONTENT
import java.net.HttpURLConnection.HTTP_OK
import java.net.HttpURLConnection.HTTP_REQ_TOO_LONG
import java.util.Date
import java.util.concurrent.TimeUnit.SECONDS
import okhttp3.Request
import okhttp3.Response
import okhttp3.internal.http.HTTP_PERM_REDIRECT
import okhttp3.internal.http.HTTP_TEMP_REDIRECT