if err != nil {
			fmt.Printf("unreadable on source: %s (%s)\n", srcCtnt.Key, err)
			sourceFailed = true
		} else if srcSize != srcCtnt.Size {
			fmt.Printf("unreadable on source - size differs upon read: %s\n", srcCtnt.Key)
			sourceFailed = true
		}
	}()
	go func() {
		defer wg.Done()
		tgtSize, err := io.Copy(tgtSha256, tobj)
		if err != nil {
			fmt.Printf("unreadable on target: %s (%s)\n", tgtCtnt.Key, err)

  override fun source() = buffer()

  override fun read(
    sink: Buffer,
    byteCount: Long,
  ): Long {
    throw IllegalStateException(
      """
      |Unreadable ResponseBody! These Response objects have bodies that are stripped:
      | * Response.cacheResponse
      | * Response.networkResponse
      | * Response.priorResponse
      | * EventSourceListener

    source1.close() // Not exhausted!
    assertThat(relay1.isClosed).isTrue()
    assertFailsWith<IOException> {
      read(file)
    }.also { expected ->
      assertThat(expected.message).isEqualTo("unreadable cache file")
    }
    assertFile(Relay.PREFIX_DIRTY, -1L, -1, null, null)
  }

  @Test
  fun redundantCallsToCloseAreIgnored() {
    val upstream = Buffer()
    upstream.writeUtf8("abcde")

        }
        return null;
    }

    private Properties read(File touchfile) {
        if (!touchfile.canRead()) {
            getLogger().debug("Skipped unreadable resolution tracking file: " + touchfile);
            return null;
        }

        synchronized (touchfile.getAbsolutePath().intern()) {
            try {
                Properties props = new Properties();

      val header = Buffer()
      fileOperator.read(0, header, FILE_HEADER_SIZE)
      val prefix = header.readByteString(PREFIX_CLEAN.size.toLong())
      if (prefix != PREFIX_CLEAN) throw IOException("unreadable cache file")
      val upstreamSize = header.readLong()
      val metadataSize = header.readLong()

      // Read the metadata.
      val metadataBuffer = Buffer()

   * from [Call.execute]. Response bodies must be [closed][ResponseBody] and may
   * be consumed only once.
   *
   * This always returns an unreadable [ResponseBody], which may implement [ResponseBody.contentType] and [ResponseBody.contentLength], on responses returned from [cacheResponse], [networkResponse],
   * and [priorResponse].
   */

  /* application types */
  /**
   * As described in <a href="http://www.ietf.org/rfc/rfc3023.txt">RFC 3023</a>, this constant
   * ({@code application/xml}) is used for XML documents that are "unreadable by casual users."
   * {@link #XML_UTF_8} is provided for documents that may be read by users.
   *
   * @since 14.0
   */

                            .read(modelSource.getInputStream(), options)
                            .getDelegate();
                } catch (ModelParseException ne) {
                    // still unreadable even in non-strict mode, rethrow original error
                    throw e;
                }

                Severity severity = (modelSource instanceof FileModelSource) ? Severity.ERROR : Severity.WARNING;

	if written < fileSize && fileSize >= 0 {
		if truncate {
			w.Truncate(0) // zero-in the file size to indicate that its unreadable
		}
		w.Close()
		return errLessData
	} else if written > fileSize && fileSize >= 0 {
		if truncate {
			w.Truncate(0) // zero-in the file size to indicate that its unreadable
		}
		w.Close()
		return errMoreData
	}

	// Only interested in flushing the size_t not mtime/atime

		Description:    "Request is not valid yet",
		HTTPStatusCode: http.StatusForbidden,
	},
	ErrSlowDownRead: {
		Code:           "SlowDownRead",
		Description:    "Resource requested is unreadable, please reduce your request rate",
		HTTPStatusCode: http.StatusServiceUnavailable,
	},
	ErrSlowDownWrite: {
		Code:           "SlowDownWrite",