}

    // Test hook method when MultiThreadedHttpConnectionManager class is not available
    public void test_hook_classNotFound() {
        // Create a custom hook that simulates class not found scenario
        FessCurtainFinallyHook customHook = new FessCurtainFinallyHook() {
            @Override
            public void hook(final FwAssistantDirector assistantDirector) {

    private final List<Thread> hooks = new ArrayList<>();

    @Override
    synchronized void addShutdownHook(Thread hook) {
      hooks.add(hook);
    }

    synchronized void shutdown() throws InterruptedException {
      for (Thread hook : hooks) {
        hook.start();
      }
      for (Thread hook : hooks) {
        hook.join();
      }
    }
  }

     *
     * @param form the create form containing the item data
     * @param hook the validation error hook
     * @return optional entity containing the created stopwords item
     */
    public static OptionalEntity<StopwordsItem> createStopwordsItem(final CreateForm form, final VaErrorHook hook) {
        return getEntity(form).map(entity -> {
            final String newInput = form.input;

     * Create a char mapping item.
     * @param form The create form.
     * @param hook The error hook.
     * @return An optional entity of a char mapping item.
     */
    protected OptionalEntity<CharMappingItem> createCharMappingItem(final CreateForm form, final VaErrorHook hook) {
        try {
            return createCharMappingItem(this, form, hook);
        } catch (final ValidationErrorException e) {
            saveToken();

            return redirect(e.getActionClass());
        }
    }

    /**
     * Hook method called before action execution.
     * <p>
     * This method logs user access activity for the current request.
     * </p>
     *
     * @param runtime the action runtime context
     * @return the action response from the parent hook
     */
    @Override
    public ActionResponse hookBefore(final ActionRuntime runtime) {

    //                                                                               Hook
    //                                                                              ======
    // to suppress unexpected override by sub-class
    // you should remove the 'final' if you need to override this
    /**
     * Hook method called before action execution.
     * This method refreshes the user information if a user is logged in

    /**
     * Get the protected word item.
     * @param form The create form.
     * @param hook The error hook.
     * @return The protected word item.
     */
    protected OptionalEntity<ProtwordsItem> createProtwordsItem(final CreateForm form, final VaErrorHook hook) {
        try {
            return createProtwordsItem(this, form, hook);
        } catch (final ValidationErrorException e) {
            saveToken();

     * @param hook the validation error hook for handling errors
     * @return OptionalEntity containing the created synonym item or empty if creation failed
     */
    protected OptionalEntity<SynonymItem> createSynonymItem(final CreateForm form, final VaErrorHook hook) {
        try {
            return createSynonymItem(this, form, hook);
        } catch (final ValidationErrorException e) {

import org.lastaflute.core.direction.CurtainBeforeHook;
import org.lastaflute.core.direction.FwAssistantDirector;

/**
 * The hook before curtain.
 *
 * @author jflute
 */
public class FessCurtainBeforeHook implements CurtainBeforeHook {

    @Override
    public void hook(final FwAssistantDirector assistantDirector) {
        processDBFluteSystem();
    }

    protected void processDBFluteSystem() {

import org.lastaflute.core.direction.FwAssistantDirector;

/**
 * The hook for curtain finally.
 *
 * @author jflute
 */
public class FessCurtainFinallyHook implements CurtainFinallyHook {

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

    @Override
    public void hook(final FwAssistantDirector assistantDirector) {
        shutdownCommonsHttpClient();
    }