* the cleanupExecutor. If cleanup is not observed after a sufficient number of reads, try
     * cleaning up from the read thread.
     */
    void postReadCleanup() {
      if ((readCount.incrementAndGet() & DRAIN_THRESHOLD) == 0) {
        runCleanup();
      }
    }

    /**
     * Performs routine cleanup prior to executing a write. This should be called every time a write

      object : RequestBody() {
        override fun contentType(): MediaType = "application/octet-stream".toMediaType()

        override fun writeTo(sink: BufferedSink) {
          called.incrementAndGet()
          throw FileNotFoundException()
        }
      }
    val request =
      Request(
        url = server.url("/"),
        body = body,
      )
    client =
      client

     * is not observed after a sufficient number of reads, try cleaning up from the read thread.
     */
    void postReadCleanup() {
      if ((readCount.incrementAndGet() & DRAIN_THRESHOLD) == 0) {
        cleanUp();
      }
    }

    /**
     * Performs routine cleanup prior to executing a write. This should be called every time a write