Object value = e.getValue();
            if (value == null) {
                value = StringUtil.EMPTY;
            }
            if (value instanceof String || value == null) {
                return new Pair<>(key, value);
            }
            if (arrayFieldSet.contains(key)) {
                if (value instanceof String[]) {

     * @return an OptionalEntity containing the mapping item if found, empty otherwise
     */
    @Override
    public OptionalEntity<CharMappingItem> get(final long id) {
        if (mappingItemList == null) {
            reload(null);
        }

        for (final CharMappingItem mappingItem : mappingItemList) {
            if (id == mappingItem.getId()) {
                return OptionalEntity.of(mappingItem);

     * @return The value of found property. (NotNull: if not found, exception)
     * @throws ConfigPropertyNotFoundException When the property is not found.
     */
    String get(String propertyKey);

    /**
     * Is the property true?
     * @param propertyKey The key of the property which is boolean type. (NotNull)
     * @return The determination, true or false. (if not found, exception)

        if (StringUtil.isBlank(objectName)) {
            return StringUtil.EMPTY;
        }
        // Remove trailing slash if present
        String name = objectName;
        if (name.endsWith("/")) {
            name = name.substring(0, name.length() - 1);
        }
        final String[] values = name.split("/");
        if (values.length == 0) {
            return StringUtil.EMPTY;

         * Commits the changes to the dictionary file.
         * If there is a pending new item, it is written to the file.
         *
         * @return The committed item, or null if no item was committed.
         * @throws DictionaryException if an I/O error occurs.
         */
        public StemmerOverrideItem commit() {
            isCommit = true;
            if (item != null && item.isUpdated()) {
                try {

     * @return the decoded bytes, or null if input is null
     */
    protected byte[] decodeBase64(String base64String) {
        if (base64String == null) {
            return null;
        }
        try {
            return BASE64_DECODER.decode(base64String);
        } catch (IllegalArgumentException e) {
            if (e.getCause() instanceof DecodingException) {

                final RequestParameter[] parameters = StreamUtil.split(keysStr, ",").get(stream -> stream.map(String::trim).map(s -> {
                    if (StringUtil.isEmpty(s)) {
                        return null;
                    }
                    final String[] values = req.getParameterValues(s);
                    if (values == null || values.length == 0) {

        }
        // Remove trailing slash if present
        String name = objectName;
        if (name.endsWith("/")) {
            name = name.substring(0, name.length() - 1);
        }
        final String[] values = name.split("/");
        if (values.length == 0) {
            return StringUtil.EMPTY;
        }
        return values[values.length - 1];
    }

    /**

     */
    public String normalizeConfigPath(final String path) {

        if (StringUtil.isBlank(path)) {
            return StringUtils.EMPTY;
        }

        final String p = path.trim();
        if (p.startsWith("#")) {
            return StringUtils.EMPTY;
        }

        if (p.startsWith(GsaConfigParser.CONTAINS)) {

                    if (StringUtil.isNotBlank(id)) {
                        if (memberType.contains("group")) {
                            groupList.add(id);
                        } else if (memberType.contains("role")) {
                            roleList.add(id);
                        } else {
                            if (logger.isDebugEnabled()) {