import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.ibm.icu.util.ULocale;

public class SystemHelper {

    private static final Logger logger = LogManager.getLogger(SystemHelper.class);

    protected final Map<String, String> designJspFileNameMap = new LinkedHashMap<>();

    protected final AtomicBoolean forceStop = new AtomicBoolean(false);

            }
        } else {
            saveError(messages -> messages.addErrorsUnknownVersionForUpgrade(GLOBAL));
        }
        return redirect(getClass());
    }

    private void upgradeFrom13_0() {
        UpgradeUtil.addData(searchEngineClient, ".fess_config.scheduled_job", "label_updater",