start();
  }

  /*
   * TODO: b/318391980 - Once we test only under Java 20 and higher, avoid calling Thread.stop. As
   * of Java 20, it always throws an exception, and as of Java 26, the method does not even exist.
   * For now, we continue using it to clean up under older JDKs.
   *
   * Our usages should at least be *relatively* safe: Typically, threads started by a test are dying

    return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
  }

  /** Returns a new started daemon Thread running the given runnable. */
  Thread newStartedThread(Runnable runnable) {
    Thread t = new Thread(runnable);
    t.setDaemon(true);
    t.start();
    return t;
  }

  /**
   * Waits for the specified time (in milliseconds) for the thread to terminate (using {@link

    }

    /**
     * Test case for when the 'Authorization' header is missing.
     * Expects the server to respond with a 'WWW-Authenticate: NTLM' header and a 401 status.
     * @throws IOException
     */
    @Test
    public void testAuthenticate_NoAuthorizationHeader() throws IOException {
        // Setup: No "Authorization" header

**DI**: LastaFlute container with `@Resource` and XML config

### Core Principles

**Thread Safety**:
- `AtomicLong` for counters (`CrawlerContext.accessCount`)
- `volatile` for status flags
- Synchronized blocks for critical sections
- Thread-local storage via `CrawlingParameterUtil`

**Resource Management**:
- `AutoCloseable` throughout

 * This exception includes an HTTP status code to indicate the nature of the error.
 */
public class WebApiException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * The HTTP status code associated with this exception.
     */
    private final int statusCode;

    /**
     * Gets the HTTP status code associated with this exception.
     *

    protected String charset = Constants.UTF_8;

    /** Helper for managing content length limits */
    @Resource
    protected ContentLengthHelper contentLengthHelper;

    /** Flag to track initialization status */
    protected AtomicBoolean isInit = new AtomicBoolean(false);

    /**
     * Constructs a new FileSystemClient.
     */
    public FileSystemClient() {
        // Default constructor
    }

    /*

                    return null;
                })).status(Status.OK).result());
    }

    // POST /api/admin/relatedcontent/setting
    /**
     * Creates a new related content setting.
     *
     * @param body related content setting data to create
     * @return JSON response with created setting ID and status
     */
    @Execute

                    return null;
                })).status(ApiResult.Status.OK).result());
    }

    // POST /api/admin/pathmap/setting
    /**
     * Creates a new path mapping setting.
     *
     * @param body path mapping setting data to create
     * @return JSON response with created setting ID and status
     */
    @Execute

    protected JsonResponse<ApiResult> asJson(final ApiResult bean) {
        return new JsonResponse<>(bean);
    }

    protected ApiResult createFailureBean(final Status status, final String message) {
        return new ApiErrorResponse().message(message).status(status).result();
    }

    protected String createMessage(final ApiFailureResource resource, final Throwable cause) {
        if (!resource.getMessageList().isEmpty()) {

    void testFileNotFoundStatus() {
        // Given
        int status = NtStatus.NT_STATUS_OBJECT_NAME_NOT_FOUND;

        // When/Then
        assertEquals((int) 0xC0000034L, status);
        // Should be an error status (0xC prefix)
        assertTrue((status & (int) 0xC0000000L) == (int) 0xC0000000L);
    }

    @Test
    @DisplayName("Should handle sharing violation status")