final List<Map<String, String>> envItems = getEnvItems();
        final List<Map<String, String>> fessPropItems = getFessPropItems(fessConfig);
        final List<Map<String, String>> propItems = getPropItems();
        return asJson(new ApiResult.ApiSystemInfoResponse().bugReportProps(bugReportItems)
                .envProps(envItems)
                .fessProps(fessPropItems)

     * Registers environment variables for rendering.
     *
     * @param data the render data to populate
     */
    protected void registerEnvItems(final RenderData data) {
        RenderDataUtil.register(data, "envItems", getEnvItems());
    }

    /**
     * Registers system properties for rendering.
     *
     * @param data the render data to populate
     */

    }

    public void test_getLanguageItems() {
        final List<Map<String, String>> enItems = systemHelper.getLanguageItems(Locale.ENGLISH);
        assertEquals(55, enItems.size());
        final List<Map<String, String>> jaItems = systemHelper.getLanguageItems(Locale.JAPANESE);
        assertEquals(55, jaItems.size());
    }