boolean isGroupRecordStarted = false;
            while ((line = reader.readLine()) != null) {
                line = stripComment(line).trim();
                if (StringUtil.isEmpty(line)) {
                    continue;
                }

                String value = getValue(USER_AGENT_RECORD, line);
                if (value != null) {
                    if (isGroupRecordStarted) {

                if (urlQueueList.isEmpty()) {
                    return null;
                }
                if (logger.isDebugEnabled()) {
                    logger.debug("Queued URL: {}", urlQueueList);
                }

                if (!urlQueueList.isEmpty()) {
                    try {
                        // delete from es

        for (CrawlerStatus status : CrawlerStatus.values()) {
            String description = getStatusDescription(status);
            assertNotNull(description);
            assertFalse(description.isEmpty());
        }
    }

    /**
     * Helper method to test switch statement
     */
    private String getStatusDescription(CrawlerStatus status) {
        switch (status) {
        case INITIALIZING:

    }

    @Override
    public String getContentType(final InputStream is, final Map<String, String> params) {
        final String filename = params.get(ExtractData.RESOURCE_NAME_KEY);
        if (StringUtil.isEmpty(filename) && is == null) {
            throw new MimeTypeException("The filename and input stream is empty.");
        }

        final Metadata metadata = new Metadata();

                }
            });
        }

        startLatch.countDown();
        endLatch.await(10, TimeUnit.SECONDS);
        executor.shutdown();

        assertTrue(exceptions.isEmpty());
        // Final name should be from one of the threads
        assertNotNull(testTransformer.getName());
        assertTrue(testTransformer.getName().startsWith("thread"));
    }

    /**

        }

        // Wait for all threads
        for (Thread thread : threads) {
            thread.join();
        }

        // Verify results
        assertTrue(exceptions.isEmpty());
        assertEquals(threadCount / 2 * matchesPerThread, matchCount.get());
        assertEquals(threadCount / 2 * matchesPerThread, noMatchCount.get());
    }

    /**

     * @see org.codelibs.fess.crawler.filter.UrlFilter#init(java.lang.String)
     */
    @Override
    public void init(final String sessionId) {
        this.sessionId = sessionId;
        if (!cachedIncludeSet.isEmpty()) {
            try {
                getUrlFilterService().addIncludeUrlFilter(sessionId, cachedIncludeSet.stream().collect(Collectors.toList()));
            } catch (final Exception e) {

     */
    default void initialize() {
        final StringBuilder buf = new StringBuilder(100);
        final String value = System.getProperty("java.protocol.handler.pkgs");
        if (StringUtil.isEmpty(value)) {
            buf.append("org.codelibs.fess.net.protocol");
        } else if (!value.contains("org.codelibs.fess.net.protocol")) {
            buf.append("|org.codelibs.fess.net.protocol");
        }

                    ThreadUtil.sleep(100L);
                }
                throw new ExtractException("PDFBox process cannot finish in " + timeout + " sec.");
            }
            if (!exceptionSet.isEmpty()) {
                throw exceptionSet.iterator().next();
            }
            writer.flush();
            final ExtractData extractData = new ExtractData(writer.toString());

     * @param keyList The list of keys to register this extractor under.
     */
    public void register(final List<String> keyList) {
        if (keyList == null || keyList.isEmpty()) {
            throw new IllegalArgumentException("keyList must not be null or empty.");
        }
        getExtractorFactory().addExtractor(keyList, this);
    }

    /**