for (Object item : list) {
                                if (item instanceof List<?> pair) {
                                    if (pair.size() == 2 && pair.get(0) instanceof String name
                                            && pair.get(1) instanceof List<?> valueList) {
                                        final String[] values =

     *
     * @return An array of pairs of keys and file names.
     */
    @SuppressWarnings("unchecked")
    public Pair<String, String>[] getDesignJspFileNames() {
        return designJspFileNameMap.entrySet().stream().map(e -> new Pair<>(e.getKey(), e.getValue())).toArray(n -> new Pair[n]);
    }

    /**
     * Refreshes the design JSP files for all virtual hosts.
     *