fun stringClosesUnderlyingSource() {
    val closed = AtomicBoolean()
    val body: ResponseBody =
      object : ResponseBody() {
        override fun contentType(): MediaType? = null

        override fun contentLength(): Long = 5

        override fun source(): BufferedSource {
          val source = Buffer().writeUtf8("hello")
          return object : ForwardingSource(source) {
            @Throws(IOException::class)

   * by malformed content types.
   */
  private val contentTypeString: String?,
  private val contentLength: Long,
  private val source: BufferedSource,
) : ResponseBody() {
  override fun contentLength(): Long = contentLength

  override fun contentType(): MediaType? = contentTypeString?.toMediaTypeOrNull()

  override fun source(): BufferedSource = source

      }

      // We can't measure the body's size without the sizes of its components.
      val contentLength = body.contentLength()
      if (contentLength == -1L && countBytes) {
        byteCountBuffer!!.clear()
        return -1L
      }

      sink.write(CRLF)

      if (countBytes) {
        byteCount += contentLength
      } else {
        body.writeTo(sink)
      }

      sink.write(CRLF)
    }

                .append(resource.getResourceName())
                .append(" (");
        format.format(message, contentLength);

        long duration = System.currentTimeMillis() - resource.getTransferStartTime();
        if (duration > 0L) {
            double bytesPerSecond = contentLength / (duration / 1000.0);
            message.append(" at ");
            format.format(message, (long) bytesPerSecond);

                .append(" (");
        format.format(message, contentLength);

        Duration duration =
                Duration.between(Instant.ofEpochMilli(resource.getTransferStartTime()), MonotonicClock.now());
        if ((duration.getSeconds() | duration.getNano()) > 0) { // duration.isPositive()
            long bytesPerSecond = Math.round(contentLength / (double) duration.toSeconds());
            message.append(" at ");

            if (!doc.containsKey(indexFieldContentLength)) {
                long contentLength = 0;
                if (doc.get(indexFieldTitle) instanceof final String title) {
                    contentLength += title.length();
                }
                if (doc.get(indexFieldContent) instanceof final String content) {
                    contentLength += content.length();
                }

      }

      response.isChunked -> {
        newChunkedSource(response.request.url)
      }

      else -> {
        val contentLength = response.headersContentLength()
        if (contentLength != -1L) {
          newFixedLengthSource(response.request.url, contentLength)
        } else {
          newUnknownLengthSource(response.request.url)
        }
      }
    }

        message.style(STYLE).append(" (").append(format.format(contentLength));

        Duration duration = Duration.between(resource.getStartTime(), MonotonicClock.now());
        long nanos = duration.toNanos();
        if (nanos > 0) {
            double seconds = nanos / (double) TimeUnit.SECONDS.toNanos(1); // Convert to fractional seconds
            double bytesPerSecond = contentLength / seconds;
            message.append(" at ");

                  }
                }
                println(bytesWritten)
                if (contentLength != -1L) {
                  println("${100 * bytesWritten / contentLength}% done")
                }
              }
            }
          }

          val file = File("docs/images/logo-square.png")
          val requestBody: RequestBody = file.asRequestBody(MEDIA_TYPE_PNG)

  /**
   * Returns the number of bytes that will be written to sink in a call to [writeTo],
   * or -1 if that count is unknown.
   */
  @Throws(IOException::class)
  open fun contentLength(): Long = -1L

  /** Writes the content of this request to [sink]. */
  @Throws(IOException::class)
  abstract fun writeTo(sink: BufferedSink)

  /**