final Map<String, String> paramMap = new LinkedHashMap<>();
        if (value != null) {
            int unknownKey = 0;
            final Pattern properyPattern = Pattern.compile(ComponentUtil.getFessConfig().getAppEncryptPropertyPattern());
            final PrimaryCipher cipher = ComponentUtil.getPrimaryCipher();
            final String[] lines = value.split("[\r\n]");
            for (final String line : lines) {

     * comment: Regex pattern for properties to encrypt.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getAppEncryptPropertyPattern();

    /**
     * Get the value for the key 'app.extension.names'. <br>
     * The value is, e.g.  <br>
     * comment: Extension names for application customization.