// This exception is fatal.
    if (!isRecoverable(e, requestSendStarted)) return false

    // No more routes to attempt.
    if (!call.retryAfterFailure()) return false

    // For failure recovery, use the same route selector with a new connection.
    return true
  }

  private fun requestIsOneShot(
    e: IOException,
    userRequest: Request,

      check(expectMoreExchanges) { "released" }
    }

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

    interceptorScopedExchange = null
  }

  fun retryAfterFailure(): Boolean {
    return exchange?.hasFailure == true &&
      exchangeFinder!!.routePlanner.hasNext(exchange?.connection)
  }

  /**