if (timeoutMillis < 0) {
            throw new IllegalArgumentException("Timeout must be non-negative");
        }
    }

    /**
     * Execute a callable through the circuit breaker
     *
     * @param <T> return type
     * @param callable the callable to execute
     * @return the result
     * @throws Exception if execution fails or circuit is open
     */

import org.codelibs.fess.helper.PermissionHelper;
import org.codelibs.fess.opensearch.config.exentity.WebConfig;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin web configuration management.
 *
 */

**FastAPI** créera l'objet de type `BackgroundTasks` pour vous et le passera comme paramètre.

## Créer une fonction de tâche { #create-a-task-function }

Créez une fonction à exécuter comme tâche d'arrière-plan.

Une fonction à exécuter comme tâche d'arrière-plan est juste une fonction standard qui peut recevoir des paramètres.

import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;
import org.codelibs.fess.opensearch.user.exentity.Role;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin role management.
 */
public class ApiAdminRoleAction extends FessApiAdminAction {

    //                                                                       Login Execute
    //                                                                      ==============

    /**
     * Displays the login page.
     *
     * @return the HTML response for the login page
     */
    @Execute
    public HtmlResponse index() {

import org.codelibs.fess.helper.SearchHelper;
import org.codelibs.fess.opensearch.client.SearchEngineClient;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;

import jakarta.annotation.Resource;

/**

    ExecutorService delegate = mock(ExecutorService.class);
    ListeningExecutorService service = listeningDecorator(delegate);
    Runnable task = () -> {};
    service.execute(task);
    verify(delegate).execute(task);
  }

  public void testListeningDecorator_scheduleSuccess() throws Exception {
    CountDownLatch completed = new CountDownLatch(1);
    ScheduledThreadPoolExecutor delegate =

    }

    @TaskAction
    public void runScript() {
        String rootDir = getProject().getRootDir().toString();
        if (extension.isWindowsVM()) {
            service.execute(spec -> {
                spec.setCommand("winrm");

                List<String> script = new ArrayList<>();
                script.add("try {");
                script.add("cd " + convertWindowsPath(getProject(), rootDir));

      MockResponse(body = "unexpected call to IPv4"),
    )
    serverIpv6.enqueue(
      MockResponse(body = "hello from IPv6"),
    )

    val call = client.newCall(Request(url))
    val response = call.execute()
    assertThat(response.body.string()).isEqualTo("hello from IPv6")

    // In the process we made one successful connection attempt.

    //                                                                      Search Execute
    //                                                                      ==============

    /**
     * Returns the OSDD document.
     *
     * @return the OSDD document as a stream response
     */
    @Execute
    public ActionResponse index() {
        if (isLoginRequired()) {
            return redirectToLogin();