byte[] payload = new byte[] { 1, 2, 3, 4 };

        w.start();

        // Wait until writer thread signals readiness
        synchronized (w) {
            long deadline = System.currentTimeMillis() + 2000;
            while (!w.isReady() && System.currentTimeMillis() < deadline) {
                w.wait(10);
            }

public class AbstractRuleTest extends PlainTestCase {

    /**
     * Concrete implementation of AbstractRule for testing
     */
    public static class TestAbstractRule extends AbstractRule {
        private static final long serialVersionUID = 1L;

        private boolean matchResult = true;
        private int matchCallCount = 0;
        private ResponseData lastResponseData = null;

        @Override

 * This exception wraps underlying search engine errors and provides
 * meaningful error messages for troubleshooting.
 */
public class SearchEngineClientException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * Constructs a new SearchEngineClientException with the specified message and cause.
     *
     * @param message the detail message explaining the exception

    return INSTANCE;
  }

  @Override
  public String toString() {
    return "Ordering.usingToString()";
  }

  private UsingToStringOrdering() {}

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

/**
 * The Exception class throw by the {@link Prompter} service.
 *
 * @since 4.0.0
 */
@Experimental
public class PrompterException extends MavenException {

    @Serial
    private static final long serialVersionUID = -3505070928479515081L;

    public PrompterException(String message) {
        super(message);
    }

    /**
     * @param message the message to give
     * @param e the {@link Exception}

 * It extends CrawlerSystemException and provides constructors to create instances with a message and/or a cause.
 *
 */
public class RobotsTxtException extends CrawlerSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * Constructs a new RobotsTxtException with the specified detail message and cause.
     * @param message the detail message
     * @param cause the cause of the exception
     */

     * @return JSON response containing the stopwords dictionary item
     */
    // GET /api/admin/dict/stopwords/setting/{dictId}/{id}
    @Execute
    public JsonResponse<ApiResult> get$setting(final String dictId, final long id) {
        return asJson(new ApiResult.ApiConfigResponse()
                .setting(stopwordsService.getStopwordsItem(dictId, id).map(entity -> createEditBody(entity, dictId)).orElseGet(() -> {

   */
  @JvmStatic
  fun fragmentBuffer(buffer: Buffer): Buffer {
    // Write each byte into a new buffer, then clone it so that the segments are shared.
    // Shared segments cannot be compacted so we'll get a long chain of short segments.
    val result = Buffer()
    while (!buffer.exhausted()) {
      val box = Buffer()
      box.write(buffer, 1)
      result.write(box.copy(), 1)
    }
    return result
  }

 * This exception is used to indicate that a user does not have the required role
 * 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<?> actionClass;

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

    KeySetSerializedForm(ImmutableMap<K, ?> map) {
      this.map = map;
    }

    Object readResolve() {
      return map.keySet();
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }