() -> {
                    reloadStarted.countDown();

                    Thread blockingForRefresh = threadAboutToBlockForRefresh.get();
                    while (blockingForRefresh.isAlive()
                        && blockingForRefresh.getState() != WAITING) {
                      Thread.yield();
                    }

                    return key + "Reload";

                  () -> {
                    reloadStarted.countDown();

                    Thread blockingForRefresh = threadAboutToBlockForRefresh.get();
                    while (blockingForRefresh.isAlive()
                        && blockingForRefresh.getState() != WAITING) {
                      Thread.yield();
                    }

                    return key + "Reload";

        final CsvReader csvReader = new CsvReader(reader, new CsvConfig());
        try {
            List<String> list;
            csvReader.readValues(); // ignore header
            while ((list = csvReader.readValues()) != null) {
                String targetWord = getValue(list, 0);
                if (StringUtil.isBlank(targetWord)) {
                    // skip
                    continue;

    return publicStaticMethods;
  }

  /** [descendant, ancestor) */
  private static Set<Class<?>> getClassesBetween(Class<?> descendant, Class<?> ancestor) {
    Set<Class<?>> classes = new HashSet<>();

    while (!descendant.equals(ancestor)) {
      classes.add(descendant);
      descendant = descendant.getSuperclass();
    }

    return classes;
  }

  /**

    return publicStaticMethods;
  }

  /** [descendant, ancestor) */
  private static Set<Class<?>> getClassesBetween(Class<?> descendant, Class<?> ancestor) {
    Set<Class<?>> classes = new HashSet<>();

    while (!descendant.equals(ancestor)) {
      classes.add(descendant);
      descendant = descendant.getSuperclass();
    }

    return classes;
  }

  /**

   * characters unescaped, they would be escaped by the consumer at parse time, anyway.</a>)
   * Additionally, the escaper escapes the slash character ("/"). While slashes are acceptable in
   * URL paths, they are considered by the specification to be separators between "path segments."
   * This implies that, if you wish for your path to contain slashes, you must escape each segment

            System.arraycopy(hash, 0, derived, 0, Math.min(length, hash.length));

            // If we need more bytes, hash again with counter
            int counter = 1;
            while (derived.length > hash.length * counter) {
                md.update(input);
                md.update((byte) counter);
                hash = md.digest();

        }
        esCb.request().build(builder);
        SearchResponse response = esCb.build(builder).execute().actionGet(scrollSearchTimeout);
        String scrollId = response.getScrollId();
        try {
            while (scrollId != null) {
                final SearchHits searchHits = getSearchHits(response);
                final SearchHit[] hits = searchHits.getHits();
                if (hits.length == 0) {
                    break;

    // the slower pointer, then there's a loop.
    Throwable slowPointer = throwable;
    boolean advanceSlowPointer = false;

    Throwable cause;
    while ((cause = throwable.getCause()) != null) {
      throwable = cause;

      if (throwable == slowPointer) {
        throw new IllegalArgumentException("Loop in causal chain detected.", throwable);
      }

     *
     * @param inputStream the input stream to read from
     * @return the detected character set name, or null if not found
     * @throws CrawlingAccessException if an error occurs while reading the content
     */
    protected String loadCharset(final InputStream inputStream) {
        BufferedInputStream bis = null;
        String encoding = null;
        try {