*/
  fun timeoutEarlyExit() {
    check(!timeoutEarlyExit)
    timeoutEarlyExit = true
    timeout.exit()
  }

  /**
   * @param closeExchange true if the current exchange should be closed because it will not be used.
   *     This is usually due to either an exception or a retry.
   */
  internal fun exitNetworkInterceptorExchange(closeExchange: Boolean) {
    this.withLock {

   * `allocations.size() < allocationLimit` then new streams can be created on this connection.
   */
  internal var allocationLimit = 1
    private set

  /** Current calls carried by this connection. */
  val calls = mutableListOf<Reference<RealCall>>()

  /** Timestamp when `allocations.size()` reached zero. Also assigned upon initial connection. */
  var idleAtNs = Long.MAX_VALUE

          .header("User-Agent", "baz")
          .build(),
      )
    assertContent("encrypted response from the origin server", response)
    val connect = server.takeRequest()
    assertThat(connect.headers["Private"]).isNull()
    assertThat(connect.headers["Proxy-Authorization"]).isNull()
    assertThat(connect.headers["User-Agent"]).isEqualTo(USER_AGENT)

  @Test fun ofMapAcceptsEmptyValue() {
    val headers = mapOf("User-Agent" to "").toHeaders()
    assertThat(headers.value(0)).isEqualTo("")
  }

  @Test fun ofMapTrimsKey() {
    val headers = mapOf(" User-Agent " to "OkHttp").toHeaders()
    assertThat(headers.name(0)).isEqualTo("User-Agent")
  }

  @Test fun ofMapTrimsValue() {
    val headers = mapOf("User-Agent" to " OkHttp ").toHeaders()

      .assertLogEqual("--> GET $url http/1.1")
      .assertLogEqual("Host: $host")
      .assertLogEqual("Connection: Keep-Alive")
      .assertLogEqual("Accept-Encoding: gzip")
      .assertLogMatch(Regex("""User-Agent: okhttp/.+"""))
      .assertLogEqual("--> END GET")
      .assertLogMatch(Regex("""<-- 200 OK $url \(\d+ms\)"""))
      .assertLogEqual("Content-Length: 0")
      .assertLogEqual("<-- END HTTP")
      .assertNoMoreLogs()

        .url(server.url("/"))
        .head()
        .header("User-Agent", "SyncApiTest")
        .build()
    executeSynchronously(request)
      .assertCode(200)
      .assertHeader("Content-Type", "text/plain")
    val recordedRequest = server.takeRequest()
    assertThat(recordedRequest.method).isEqualTo("HEAD")
    assertThat(recordedRequest.headers["User-Agent"]).isEqualTo("SyncApiTest")

  val isOptional: Boolean = false,
  /** The value to return if this value is absent. Undefined unless this is optional. */
  val defaultValue: T? = null,
  /** True to set the encoded or decoded value as the type hint for the current SEQUENCE. */
  private val typeHint: Boolean = false,
) : DerAdapter<T> {
  init {
    require(tagClass >= 0)
    require(tag >= 0)
  }

    val parts = header.split(':', limit = 2)
    if (!isSpecialHeader(parts[0])) {
      request.header(parts[0], parts[1])
    }
  }
  referer?.let {
    request.header("Referer", it)
  }
  request.header("User-Agent", userAgent)

  return request.build()
}

private fun Main.mediaType(): MediaType? {
  val mimeType =
    headers?.let {
      for (header in it) {
        val parts = header.split(':', limit = 2)

    val snapshot = (cached.body as CacheResponseBody).snapshot
    var editor: DiskLruCache.Editor? = null
    try {
      editor = snapshot.edit() ?: return // edit() returns null if snapshot is not current.
      entry.writeTo(editor)
      editor.commit()
    } catch (_: IOException) {
      abortQuietly(editor)
    }
  }

  private fun abortQuietly(editor: DiskLruCache.Editor?) {

   * by the application:
   *
   * * It may be transformed by the user's interceptors. For example, an application interceptor
   *   may add headers like `User-Agent`.
   * * It may be the request generated in response to an HTTP redirect or authentication
   *   challenge. In this case the request URL may be different than the initial request URL.
   *