}
        ftpAuthenticationHolder = null;
        for (final FTPClient ftpClient : ftpClientQueue) {
            try {
                ftpClient.disconnect();
            } catch (final IOException e) {
                logger.debug("Failed to disconnect FTPClient.", e);
            }
        }
    }

    /*
     * (non-Javadoc)
     *

	}

	return target.send(eventData)
}

// Close - does nothing and available for interface compatibility.
func (target *MQTTTarget) Close() error {
	if target.client != nil {
		target.client.Disconnect(100)
	}
	close(target.quitCh)
	return nil
}

func (target *MQTTTarget) init() error {
	return target.initOnce.Do(target.initMQTT)
}

func (target *MQTTTarget) initMQTT() error {

Now, to be able to test that everything works, create a *path operation*:

{* ../../docs_src/custom_docs_ui/tutorial002.py hl[39:41] *}

### Test Static Files UI

Now, you should be able to disconnect your WiFi, go to your docs at <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>, and reload the page.

        } catch (IOException e) {
            throw new ChecksumFailedException("Invalid checksum file", e);
        }
    }

    private void disconnectWagon(Wagon wagon) {
        try {
            wagon.disconnect();
        } catch (ConnectionException e) {
            logger.error("Problem disconnecting from wagon - ignoring: " + e.getMessage());
        }
    }

	if !s.IsValid(w, r) {
		s.writeErrorResponse(w, errors.New("invalid request"))
		return
	}

	globalNetPerfRX.Connect()
	defer globalNetPerfRX.Disconnect()

	connectTime := time.Now()
	ctx := newContext(r, w, "DevNull")
	for {
		n, err := io.CopyN(xioutil.Discard, r.Body, 128*humanize.KiByte)
		atomic.AddUint64(&globalNetPerfRX.RX, uint64(n))

			if contextCanceled(ctx) {
				w.WriteHeader(499)
				return
			}
			f.ServeHTTP(w, r)
		case <-r.Context().Done():
			globalHTTPStats.addRequestsInQueue(-1)
			// When the client disconnects before getting the S3 handler
			// status code response, set the status code to 499 so this request
			// will be properly audited and traced.
			w.WriteHeader(499)
		default:
			globalHTTPStats.addRequestsInQueue(-1)