}

    /**
     * Inserts a new character mapping item into the dictionary file.
     *
     * @param item the character mapping item to insert
     */
    @Override
    public synchronized void insert(final CharMappingItem item) {
        try (MappingUpdater updater = new MappingUpdater(item)) {
            reload(updater);

        }

        return new PagingList<>(stemmerOverrideItemList.subList(offset, toIndex), offset, size, stemmerOverrideItemList.size());
    }

    @Override
    public synchronized void insert(final StemmerOverrideItem item) {
        try (StemmerOverrideUpdater updater = new StemmerOverrideUpdater(item)) {
            reload(updater);
        }
    }

    @Override

    /** The key of the message: Update */
    public static final String LABELS_LOGIN_UPDATE = "{labels.login.update}";

    /**
     * Assert the property is not null.
     * @param property The value of the property. (NotNull)
     */
    protected void assertPropertyNotNull(String property) {
        if (property == null) {