done: Boolean,
        ) {
          if (done) {
            println("completed")
          } else {
            if (firstUpdate) {
              firstUpdate = false
              if (contentLength == -1L) {
                println("content-length: unknown")
              } else {
                println("content-length: $contentLength")
              }
            }
            println(bytesWritten)

            if (this.configuration != null) {
                lc = new LoginContext(this.serviceName, ps, this, this.configuration);
            } else if (ps != null) {
                lc = new LoginContext(this.serviceName, ps, this);
            } else {
                lc = new LoginContext(this.serviceName, this);
            }
            lc.login();

            Subject s = lc.getSubject();

		_, isConfig := opts[i].(*Config)
		_, isConfig2 := opts[j].(*Config)
		return isConfig && !isConfig2
	})

	if len(opts) > 0 {
		if c, ok := opts[0].(*Config); ok {
			config = c
		} else {
			opts = append([]Option{config}, opts...)
		}
	}

	var skipAfterInitialize bool
	for _, opt := range opts {
		if opt != nil {
			if applyErr := opt.Apply(config); applyErr != nil {

        .build()
        .also {
          call.eventListener.cacheHit(call, it)
        }
    }

    if (cacheResponse != null) {
      call.eventListener.cacheConditionalHit(call, cacheResponse)
    } else if (cache != null) {
      call.eventListener.cacheMiss(call)
    }

    var networkResponse: Response? = null
    try {
      networkResponse = chain.proceed(networkRequest)
    } finally {

						incorrectConfigs = append(incorrectConfigs, fmt.Errorf("%s has incorrect configuration: %w", clnt, err))
					} else {
						offlineEndpoints = append(offlineEndpoints, fmt.Errorf("%s is unreachable: %w", clnt, err))
					}
				} else {
					onlineServers++
				}
				mu.Unlock()
			}(clnt)
		}
		wg.Wait()

		select {
		case <-ctx.Done():
			return ctx.Err()

      !response.promisesBody() -> 0L
      response.isChunked -> -1L
      else -> response.headersContentLength()
    }

  override fun openResponseBodySource(response: Response): Source =
    when {
      !response.promisesBody() -> newFixedLengthSource(response.request.url, 0)
      response.isChunked -> newChunkedSource(response.request.url)
      else -> {
        val contentLength = response.headersContentLength()

        return ((CharSequence) value).length() == 0;
      } else if (value instanceof Collection) {
        return ((Collection<?>) value).isEmpty();
      } else if (value instanceof Map) {
        return ((Map<?, ?>) value).isEmpty();
      } else if (value instanceof Optional) {
        return !((Optional) value).isPresent();
      } else if (value.getClass().isArray()) {
        return Array.getLength(value) == 0;

            this.ntlmsspFlags |=
                    NtlmFlags.NTLMSSP_NEGOTIATE_SIGN | NtlmFlags.NTLMSSP_NEGOTIATE_ALWAYS_SIGN | NtlmFlags.NTLMSSP_NEGOTIATE_KEY_EXCH;
        } else if (auth.isGuest()) {
            this.ntlmsspFlags |= NtlmFlags.NTLMSSP_NEGOTIATE_KEY_EXCH;
        } else {
            this.ntlmsspFlags |= NtlmFlags.NTLMSSP_NEGOTIATE_ANONYMOUS;
        }
        this.requireKeyExchange = doSigning;

            logger.debug("Crawling access exception at url: {}", urlQueue.getUrl(), e);
        } else if (e.isInfoEnabled()) {
            logger.info(e.getMessage());
        } else if (e.isWarnEnabled()) {
            logger.warn("Crawling access exception at url: {}", urlQueue.getUrl(), e);
        } else if (e.isErrorEnabled()) {
            logger.error("Crawling access exception at url: {}", urlQueue.getUrl(), e);

                    result.setArtifact(relocatedArtifact);
                    return model; // they share same model
                } else {
                    result.addRelocation(a);
                    a = relocatedArtifact;
                    result.setArtifact(a);
                }
            } else {
                return model;
            }
        }
    }