server.enqueue(
      MockResponse
        .Builder()
        .body(
          """
          |data: hey
          |
          |
          """.trimMargin(),
        ).setHeader("content-type", "text/event-stream")
        .build(),
    )
    val request = Request.Builder().url(server.url("/")).build()
    val response = client.newCall(request).execute()
    response.processEventSource(listener)
    listener.assertOpen()

   *
   * <p>For example:
   *
   * {@snippet :
   * Stream.of("foo", "quux", "banana", "elephant")
   *     .collect(least(2, comparingInt(String::length)))
   * // returns {"foo", "quux"}
   * }
   *
   * <p>This {@code Collector} uses O(k) memory and takes expected time O(n) (worst-case O(n log
   * k)), as opposed to e.g. {@code Stream.sorted(comparator).limit(k)}, which currently takes O(n

                    logger.debug(() -> "Refreshed " + stream(indices).get(stream -> stream.collect(Collectors.joining(", "))));
                }
            }

            @Override
            public void onFailure(final Exception e) {
                logger.error(() -> "Failed to refresh " + stream(indices).get(stream -> stream.collect(Collectors.joining(", "))), e);
            }
        });

        this.body = body;
        return this;
    }

    /**
     * Sets the input stream for the request body.
     *
     * @param stream the input stream
     * @return this CurlRequest instance
     * @throws CurlException if the body method is already called
     */
    public CurlRequest body(final InputStream stream) {
        if (body != null) {
            throw new CurlException("body method is already called.");

    private final CIFSContext transportContext;

    /**
     * Sets the URL stream handler factory for the environment. This
     * allows specification of the factory used in creating underlying
     * stream handlers. This can be called once per JVM instance.
     *
     * @param factory
     *            The URL stream handler factory.
     */

    /**
     * Adds sort builders to the query context.
     * @param sortBuilders Variable number of sort builders to add.
     */
    public void addSorts(final SortBuilder<?>... sortBuilders) {
        stream(sortBuilders).of(stream -> stream.forEach(sortBuilder -> sortBuilderList.add(sortBuilder)));
    }

    /**
     * Checks if any sort builders have been added to this context.

                }
            }

            final DuplicateHostHelper duplicateHostHelper = ComponentUtil.getDuplicateHostHelper();

            // set urls
            split(urlsStr, "[\r\n]").of(stream -> stream.filter(StringUtil::isNotBlank).map(String::trim).distinct().forEach(urlValue -> {
                if (!urlValue.startsWith("#") && protocolHelper.isValidWebProtocol(urlValue)) {

                    logger.debug("Interrupting a stream thread.");
                }
                ist.interrupt();

                CommonPoolUtil.execute(() -> {
                    try {
                        CloseableUtil.closeQuietly(p.getInputStream());
                    } catch (final Exception e) {
                        logger.warn("Could not close a process input stream.", e);
                    }
                });

     * file output stream.
     *
     * @throws IOException if a network error occurs
     */

    @Override
    public void write(final byte[] b) throws IOException {
        write(b, 0, b.length);
    }

    /**
     * Tests whether the output stream is currently open.
     *
     * @return true if the stream is open, false otherwise
     */

            final String[] oldLabels = DocumentUtil.getValue(dataMap, fessConfig.getIndexFieldLabel(), String[].class);
            StreamUtil.stream(oldLabels).of(stream -> stream.forEach(newLabelSet::add));
            matchedLabelSet.stream().forEach(newLabelSet::add);
            dataMap.put(fessConfig.getIndexFieldLabel(), newLabelSet.toArray(new String[newLabelSet.size()]));
        }