}

    /**
     * Updates the dictionary file with content from an input stream.
     *
     * @param in The input stream containing the new dictionary content.
     * @throws IOException if an I/O error occurs.
     */
    public synchronized void update(final InputStream in) throws IOException {
        try (StemmerOverrideUpdater updater = new StemmerOverrideUpdater(null)) {
            reload(updater, in);
        }

    }

    /**
     * Updates the entire mapping file content from the provided input stream.
     *
     * @param in the input stream containing the new mapping file content
     * @throws IOException if an I/O error occurs during the update
     */
    public synchronized void update(final InputStream in) throws IOException {
        try (MappingUpdater updater = new MappingUpdater(null)) {
            reload(updater, in);
        }

        }
        final Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
        cal.set(2027, 6 - 1, 1); // EOL Date
        eolTime = cal.getTimeInMillis();
        if (isEoled()) {
            logger.error("Your system is out of support. See https://fess.codelibs.org/eol.html");
        }
        updateSystemProperties();
        final FessConfig fessConfig = ComponentUtil.getFessConfig();