class v410Updater extends AbstractUpgradeItem {

    private static final Logger LOGGER = Logger.getLogger(v410Updater.class);

    @Override
    public String getSchemaVersion() {
        return "4.1.0";
    }

    @Override
    public void executeUpgrade(final AlpineQueryManager alpineQueryManager, final Connection connection) throws Exception {<FILL_FUNCTION_BODY>}
}

        LOGGER.info("Deleting index directory");
        try {
            final String INDEX_ROOT_DIR = Config.getInstance().getDataDirectorty().getAbsolutePath() + File.separator + "index";
            FileDeleteStrategy.FORCE.delete(new File(INDEX_ROOT_DIR));
        } catch (IOException e) {
            LOGGER.error("An error occurred deleting the index directory", e);
        }
    
<no_super_class>