* Fess configuration containing application settings.
     * Used to retrieve paging and other configuration parameters.
     */
    @Resource
    protected FessConfig fessConfig;

    /**
     * Creates a new instance of DuplicateHostService.
     * This constructor initializes the service for managing duplicate host configuration operations
     * including CRUD operations and search functionality.
     */

    //                                                                           Singleton
    //                                                                           =========
    private static final FailureUrlDbm _instance = new FailureUrlDbm();

    private FailureUrlDbm() {
    }

    public static FailureUrlDbm getInstance() {
        return _instance;
    }

 *
 * <p>Strategies work with domtrip Documents for perfect formatting preservation.
 * Subclasses can create domtrip Editors from Documents as needed:
 * <pre>
 * Editor editor = new Editor(document);
 * // ... perform domtrip operations ...
 * // Document is automatically updated
 * </pre>
 */
public abstract class AbstractUpgradeStrategy implements UpgradeStrategy {

    /**

  public static <T extends @Nullable Object, A extends @Nullable Object, R extends @Nullable Object>
      CollectorTester<T, A, R> of(
          Collector<T, A, R> collector, BiPredicate<? super R, ? super R> equivalence) {
    return new CollectorTester<>(collector, equivalence);
  }

  private final Collector<T, A, R> collector;
  private final BiPredicate<? super R, ? super R> equivalence;

  private CollectorTester(

 * @since 1.0
 */
@GwtIncompatible
@J2ktIncompatible
public abstract class AbstractExecutionThreadService implements Service {
  /* use AbstractService for state management */
  private final Service delegate =
      new AbstractService() {
        @Override
        protected final void doStart() {
          Executor executor = renamingDecorator(executor(), () -> serviceName());
          executor.execute(
              () -> {

            if (mimetype != null) {
                return mimetype;
            }
            return URLConnection.guessContentTypeFromName(path);
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        } finally {
            CloseableUtil.close(is);
        }
    }

        assertArgumentNotNull("locale", locale);

        DecimalFormatSymbols symbols = CACHE.get(locale);
        if (symbols == null) {
            symbols = new DecimalFormatSymbols(locale);
            CACHE.put(locale, symbols);
        }
        return symbols;
    }

     * @return the wrapped query string with leading and trailing asterisks
     */
    protected static String wrapQuery(final String query) {
        final StringBuilder sb = new StringBuilder();
        if (!query.startsWith("*")) {
            sb.append("*");
        }
        sb.append(query);
        if (!query.endsWith("*")) {
            sb.append("*");
        }

        asDocMeta().version(version);
    }

    public Date getExpires() {
        if (getExpiredTime() == null) {
            return null;
        }
        return new Date(getExpiredTime());
    }

    public void setExpires(final Date date) {
        setExpiredTime(date != null ? date.getTime() : null);
    }

    @Override
    public String toString() {

    @Override
    public void fetchFirst(int fetchSize) {
        _fetchScopeEffective = true;
        if (fetchSize < 0) {
            String msg = "Argument[fetchSize] should be plus: " + fetchSize;
            throw new IllegalArgumentException(msg);
        }
        _fetchStartIndex = 0;
        _fetchSize = fetchSize;
        _fetchPageNumber = 1;
        doClearFetchPageClause();
        doFetchFirst();
    }