}
            final long contentLength = getContentLength(out);
            if (contentLength > maxContentLength) {
                throw new MaxLengthExceededException(
                        "The content length (" + contentLength + " byte) is over " + maxContentLength + " byte.");
            }
            if (contentLength == 0) {
                if (logger.isDebugEnabled()) {

  sizeMapper: (T) -> Int,
): T {
  val contentLength = contentLength()
  if (contentLength > Int.MAX_VALUE) {
    throw IOException("Cannot buffer entire body for content length: $contentLength")
  }

  val bytes = source().use(consumer)
  val size = sizeMapper(bytes)
  if (contentLength != -1L && contentLength != size.toLong()) {
    throw IOException("Content-Length ($contentLength) and stream length ($size) disagree")
  }

		}
	}
}

// Provides a fully populated http request instance, fails otherwise.
func mustNewRequest(method string, urlStr string, contentLength int64, body io.ReadSeeker, t *testing.T) *http.Request {
	req, err := newTestRequest(method, urlStr, contentLength, body)
	if err != nil {
		t.Fatalf("Unable to initialize new http request %s", err)
	}
	return req
}

        throw e
      }

      val tookMs = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startNs)

      val responseBody = response.body!!
      val contentLength = responseBody.contentLength()
      val bodySize = if (contentLength != -1L) "$contentLength-byte" else "unknown-length"
      logger.log(
        buildString {
          append("<-- ${response.code}")

        if (done) {
          System.out.println("completed");
        } else {
          if (firstUpdate) {
            firstUpdate = false;
            if (contentLength == -1) {
              System.out.println("content-length: unknown");
            } else {
              System.out.format("content-length: %d\n", contentLength);
            }
          }

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

        override fun contentLength(): Long {
          return 5
        }

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

          }
          source.close()
        }
      }

    val contentType = response.header("Content-Type")
    val contentLength = response.body.contentLength()
    return response.newBuilder()
      .body(RealResponseBody(contentType, contentLength, cacheWritingSource.buffer()))
      .build()
  }

  companion object {

        this.executionTime = executionTime;
    }

    @Override
    public Long getContentLength() {
        return contentLength;
    }

    @Override
    public void setContentLength(final Long contentLength) {
        this.contentLength = contentLength;
    }

    @Override
    public Long getLastModified() {
        return lastModified;
    }

    @Override

    public void setCharSet(final String charSet) {
        this.charSet = charSet;
    }

    public long getContentLength() {
        return contentLength;
    }

    public void setContentLength(final long contentLength) {
        this.contentLength = contentLength;
    }

    public String getMimeType() {
        return mimeType;
    }

    public void setMimeType(final String contentType) {

  fun delegate(): ResponseBody {
    return delegate
  }

  override fun contentType(): MediaType? {
    return delegate.contentType()
  }

  override fun contentLength(): Long {
    return delegate.contentLength()
  }

  override fun source(): BufferedSource {
    return delegate.source()
  }

  override fun toString(): String {
    return javaClass.simpleName + "(" + delegate.toString() + ")"