FessIntervalController controller = new FessIntervalController();

        controller.setDelayMillisAtNoUrlInQueue(2000L);
        assertEquals(2000L, controller.getDelayMillisAtNoUrlInQueue());

        controller.setDelayMillisAtNoUrlInQueue(10000L);
        assertEquals(10000L, controller.getDelayMillisAtNoUrlInQueue());

        controller.setDelayMillisAtNoUrlInQueue(0L);
        assertEquals(0L, controller.getDelayMillisAtNoUrlInQueue());

src/main/webapp/WEB-INF/view/  # JSP templates
src/test/java/.../it/          # Integration tests (*Tests.java)
```

## Architecture Patterns

### Action (Controller)
- Hierarchy: `TypicalAction` → `FessBaseAction` → `FessAdminAction`/`FessSearchAction`
- `@Execute` marks web endpoints
- `@Resource` for DI
- `@Secured({ "role", "role-view" })` for authorization

        // Default constructor
    }

    /** Default client invoke names for DBFlute behavior invocation. */
    protected static final String[] DEFAULT_CLIENT_INVOKE_NAMES = { "Page", "Action", "Controller", "ControllerImpl", "Task", "Test" };

    /** Default bypass invoke names for DBFlute behavior invocation. */
    protected static final String[] DEFAULT_BYPASS_INVOKE_NAMES =

import org.codelibs.fess.util.ComponentUtil;

/**
 * FessIntervalController extends DefaultIntervalController to provide
 * Fess-specific interval control functionality for web crawling operations.
 * This controller manages delays and timing for various crawling states
 * including processing delays, queue waiting times, and new URL discovery.
 */
public class FessIntervalController extends DefaultIntervalController {

import org.lastaflute.web.login.exception.LoginFailureException;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.response.HtmlResponse;

/**
 * SSO (Single Sign-On) action controller.
 *
 * This action handles SSO authentication flows including login, logout, and metadata
 * operations. It coordinates with the SsoManager to perform authentication using