Pattern[] patterns = (Pattern[]) propMap.get(CRAWLER_METADATA_CONTENT_EXCLUDES);
        if (patterns == null) {
            patterns = split(getCrawlerMetadataContentExcludes(), ",")
                    .get(stream -> stream.filter(StringUtil::isNotBlank).map(Pattern::compile).toArray(n -> new Pattern[n]));
            propMap.put(CRAWLER_METADATA_CONTENT_EXCLUDES, patterns);
        }

  }

  @Override
  public boolean containsValue(@CheckForNull Object value) {
    if (value == null) {
      return false;
    }

    // This implementation is patterned after ConcurrentHashMap, but without the locking. The only
    // way for it to return a false negative would be for the target value to jump around in the map

  }

  @Override
  public boolean containsValue(@CheckForNull Object value) {
    if (value == null) {
      return false;
    }

    // This implementation is patterned after ConcurrentHashMap, but without the locking. The only
    // way for it to return a false negative would be for the target value to jump around in the map

/**
 * <b>Do not use this class directly. For access to public-suffix information, use {@link
 * com.google.common.net.InternetDomainName}.</b>
 *
 * <p>A generated static class containing public members which provide domain name patterns used in
 * determining whether a given domain name is an effective top-level domain (public suffix).
 *
 * <p>Because this class is used in GWT, the data members are stored in a space-efficient manner.
 * See {@link TrieParser}.

/**
 * <b>Do not use this class directly. For access to public-suffix information, use {@link
 * com.google.common.net.InternetDomainName}.</b>
 *
 * <p>A generated static class containing public members which provide domain name patterns used in
 * determining whether a given domain name is an effective top-level domain (public suffix).
 *
 * <p>Because this class is used in GWT, the data members are stored in a space-efficient manner.
 * See {@link TrieParser}.