/**
     * Represent an invariant type argument.
     * e.g. `<T>`
     */
    INVARIANT,

    /**
     * Represent a covariant type argument.
     * Also known as "extends-bound" or "upper bound".
     * e.g. `<? extends T>`
     */
    COVARIANT,

    /**
     * Represent a contravariant type argument.
     * Also known as "super-bound" or "lower bound".
     * e.g. `<? super T>`
     */

Esta separación de partes, y ser un "microframework" que podría extenderse para cubrir exactamente lo que se necesita, fue una funcionalidad clave que quise mantener.

Pero primero deberías leer la **Tutorial - Guía del Usuario** (lo que estás leyendo ahora mismo).

import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin failure URL.
 *
 */
public class ApiAdminFailureurlAction extends FessApiAdminAction {

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

    // ===================================================================================

 * to the wrapped factory instance.
 *
 * This class implements the decorator pattern to extend CrawlerClientFactory functionality while
 * maintaining the same interface.
 *
 */
public class CrawlerClientFactoryWrapper extends CrawlerClientFactory {
    /**
     * The underlying CrawlerClientFactory instance to which operations are delegated.
     */
    private final CrawlerClientFactory factory;

import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin crawling info.
 *
 */
public class ApiAdminCrawlinginfoAction extends FessApiAdminAction {

    /**
     * Default constructor.
     */
    public ApiAdminCrawlinginfoAction() {
        super();
    }

 *
 * This interface provides internal methods for managing
 * SMB network transport and communication.
 *
 * @author mbechler
 */
public interface SmbTransportInternal extends SmbTransport {

    /**
     * Checks if the transport supports the specified capability.
     *
     * @param cap the capability flag to check
     * @return whether the transport has the given capability

 * optionally process each line with a callback function, and maintain a circular buffer
 * of recent lines for retrieval.
 */
public class InputStreamThread extends Thread {
    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(InputStreamThread.class);

    /** Buffered reader for reading from the input stream */

 *
 * Note: This is a skeleton implementation. A real implementation would
 * require proper DiSNI integration with actual memory registration.
 */
public class DisniMemoryRegion extends RdmaMemoryRegion {

    private static final Logger log = LoggerFactory.getLogger(DisniMemoryRegion.class);
    private static final AtomicInteger keyGenerator = new AtomicInteger(2000);

 * Converts Lucene WildcardQuery objects to OpenSearch QueryBuilder objects,
 * supporting wildcard pattern matching with configurable case sensitivity.
 */
public class WildcardQueryCommand extends QueryCommand {

    /**
     * Default constructor.
     */
    public WildcardQueryCommand() {
        super();
    }