var headerBlockLength = length
    if (flags and FLAG_PRIORITY != 0) {
      readPriority(handler, streamId)
      headerBlockLength -= 5 // account for above read.
    }
    headerBlockLength = lengthWithoutPadding(headerBlockLength, flags, padding)
    val headerBlock = readHeaderBlock(headerBlockLength, padding, flags, streamId)

  var complete = (upstream == null)

  /** The most recently read bytes from [upstream]. This is a suffix of [file]. Guarded by this. */
  val buffer = Buffer()

  /**
   * Reference count of the number of active sources reading this stream. When decremented to 0
   * resources are released and all following calls to [.newSource] return null. Guarded by this.
   */
  var sourceCount = 0

  val isClosed: Boolean

    val bytes = "060229ffffff7f".decodeHex()
    assertFailsWith<ProtocolException> {
      Adapters.OBJECT_IDENTIFIER.fromDer(bytes)
    }.also { expected ->
      assertThat(expected.message).isEqualTo("unexpected byte count at OBJECT IDENTIFIER")
    }
  }

  /**
   * ```
   * Point ::= SEQUENCE {
   *   x [0] INTEGER OPTIONAL,
   *   y [1] INTEGER OPTIONAL
   * }
   * ```
   */
  data class Point(

 * these three certificates are used.
 *
 * ```
 * www.squareup.com certificate:
 *
 * Common Name: www.squareup.com
 * Subject Alternative Names: www.squareup.com, squareup.com, account.squareup.com...
 * Validity: 2018-07-03T20:18:17Z – 2019-08-01T20:48:15Z
 * Public Key: d107beecc17325f55da976bcbab207ba4df68bd3f8fce7c3b5850311128264fd53e1baa342f58d93...

 * ## Cache Optimization
 *
 * To measure cache effectiveness, this class tracks three statistics:
 *
 *  * **[Request Count:][requestCount]** the number of HTTP requests issued since this cache was
 *    created.
 *  * **[Network Count:][networkCount]** the number of those requests that required network use.
 *  * **[Hit Count:][hitCount]** the number of those requests whose responses were served by the
 *    cache.
 *

internal fun checkOffsetAndCount(
  arrayLength: Long,
  offset: Long,
  count: Long,
) {
  if (offset or count < 0L || offset > arrayLength || arrayLength - offset < count) {
    throw ArrayIndexOutOfBoundsException("length=$arrayLength, offset=$offset, count=$offset")
  }
}

val commonEmptyHeaders: Headers = Headers.headersOf()

    }
    var count = 0
    while (!data.exhausted()) {
      assertFailsWith<ProtocolException> {
        clientReader.processNextFrame()
      }.also { expected ->
        assertThat(expected.message!!)
          .matches(Regex("Code \\d+ is reserved and may not be used."))
      }
      count++
    }
    assertThat(count).isEqualTo(1988)
  }

        override fun read(
          sink: Buffer,
          byteCount: Long,
        ): Long {
          val mixedCase = Buffer()
          val count = original.read(mixedCase, byteCount)
          sink.writeUtf8(mixedCase.readUtf8().uppercase())
          return count
        }
      }
    }
  }

      frameHeader(
        streamId = 0,
        length = settings.size() * 6,
        type = TYPE_SETTINGS,
        flags = FLAG_NONE,
      )
      for (i in 0 until Settings.COUNT) {
        if (!settings.isSet(i)) continue
        val id =
          when (i) {
            4 -> 3 // SETTINGS_MAX_CONCURRENT_STREAMS renumbered.
            7 -> 4 // SETTINGS_INITIAL_WINDOW_SIZE renumbered.

      object : WebSocketListener() {
        override fun onFailure(
          webSocket: WebSocket,
          t: Throwable,
          response: Response?,
        ) {
          if (attempts.count > 0) {
            clientListener.setNextEventDelegate(this)
            webSockets.add(client.newWebSocket(request, clientListener))
            attempts.countDown()
          }
        }
      }