//                                                                          Definition
    //                                                                          ==========
    private static final long serialVersionUID = 1L;

    // ===================================================================================
    //                                                                           Attribute

 * </p>
 *
 * @author koichik
 * @param <K> the key type
 * @param <V> the value type
 */
public class LruHashMap<K, V> extends LinkedHashMap<K, V> {

    private static final long serialVersionUID = 1L;

    /**
     * Default initial capacity.
     */
    protected static final int DEFAULT_INITIAL_CAPACITY = 16;

    /**
     * Default load factor.
     */

 * to access a specific action or resource.
 *
 */
public class UserRoleLoginException extends RuntimeException {

    private static final long serialVersionUID = 1L;

    /** The action class that requires specific user roles */
    private final Class<? extends RootAction> actionClass;

    /**
     * Constructs a new UserRoleLoginException with the specified action class.

 */
public class SsoLoginException extends FessSystemException {

    /** Serial version UID for serialization compatibility. */
    private static final long serialVersionUID = 1L;

    /**
     * Constructs a new SsoLoginException with the specified detail message.
     *
     * @param message The detail message explaining the SSO login failure
     */

 * with SSO providers, or configuration issues.
 */
public class SsoProcessException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * Constructs a new SSO process exception with the specified detailed message.
     *
     * @param message The detailed error message explaining the cause of the exception
     */

 * This exception indicates that the required container or a specific component within it cannot be accessed.
 */
public class ContainerNotAvailableException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /** The name of the component that is not available. */
    private String componentName;

    /**
     * Constructor with component name.

 * This exception is used for errors during thumbnail creation and processing.
 */
public class ThumbnailGenerationException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * Constructs a new ThumbnailGenerationException with the specified message and cause.
     *
     * @param message the exception message
     * @param cause the underlying cause of this exception

 * and whether the crawling process should be aborted.
 */
public class DataStoreCrawlingException extends CrawlingAccessException {

    private static final long serialVersionUID = 1L;

    /**
     * The URL where the crawling error occurred.
     */
    private final String url;

    /**
     * Flag indicating whether the crawling process should be aborted.
     */

    }

    /**
     * Entra ID user implementation providing user information and permissions.
     */
    public static class EntraIdUser implements FessUser {
        private static final long serialVersionUID = 1L;

        /** User's group memberships. */
        protected volatile String[] groups;

        /** User's role assignments. */
        protected volatile String[] roles;

 */
public class SitemapAlternateLink implements Serializable {

    private static final long serialVersionUID = 1L;

    /**
     * The language/region code for this alternate link.
     * Should be in ISO 639-1 format (language) optionally followed by ISO 3166-1 Alpha 2 format (region).