throw ProtocolException("Too many follow-up requests: $followUpCount")
        }

        request = followUp
        priorResponse = response
      } finally {
        call.exitNetworkInterceptorExchange(closeActiveExchange)
      }
    }
  }

  /**
   * Report and attempt to recover from a failure to communicate with a server. Returns true if

  }

  /**
   * @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 {
      check(expectMoreExchanges) { "released" }
    }

    if (closeExchange) {
      exchange?.detachWithViolence()
    }