}

    @Override
    public void run() {
      if (future instanceof InternalFutureFailureAccess) {
        Throwable failure =
            InternalFutures.tryInternalFastPathGetFailure((InternalFutureFailureAccess) future);
        if (failure != null) {
          callback.onFailure(failure);
          return;
        }
      }
      V value;
      try {
        value = getDone(future);

        .isTrue();
    if (!failures.isEmpty()) {
      StringWriter message = new StringWriter();
      PrintWriter writer = new PrintWriter(message);
      writer.println("Expected no failures, but found:");
      for (AssertionError failure : failures) {
        failure.printStackTrace(writer);
      }
      failures.clear();
      assertWithMessage(message.toString()).fail();
    }

    /**
     * The key for the option to enable strict parsing. This option is of type {@link Boolean} and defaults to {@code
     * true}. If {@code false}, unknown elements will be ignored instead of causing a failure.
     */
    String IS_STRICT = "org.apache.maven.artifact.repository.metadata.io.isStrict";

    /**
     * Reads the metadata from the specified file.
     *

     *
     * <p>The thread manages:</p>
     * <ul>
     *   <li>Data store initialization and document processing</li>
     *   <li>Index update operations through callbacks</li>
     *   <li>Error handling and failure logging</li>
     *   <li>Cleanup of old documents after successful crawling</li>
     * </ul>
     */
    protected static class DataCrawlingThread extends Thread {

    /**
     * The key for the option to enable strict parsing. This option is of type {@link Boolean} and defaults to {@code
     * true}. If {@code false}, unknown elements will be ignored instead of causing a failure.
     */
    String IS_STRICT = "org.apache.maven.settings.io.isStrict";

    /**
     * Reads the settings from the specified file.
     *

    /**
     * The key for the option to enable strict parsing. This option is of type {@link Boolean} and defaults to {@code
     * true}. If {@code false}, unknown elements will be ignored instead of causing a failure.
     */
    String IS_STRICT = "org.apache.maven.toolchains.io.isStrict";

    /**
     * Reads the toolchains from the specified file.
     *

    /** Property key for failure type ignore configuration. */
    public static final String IGNORE_FAILURE_TYPE_PROPERTY = "failure.ignoretype";

    /** Property key for failure count threshold configuration. */
    public static final String FAILURE_COUNT_THRESHOLD_PROPERTY = "failure.countthreshold";

    /** Property key for CSV file encoding configuration. */

                        .filter(StringUtil::isNotBlank)
                        .orElse("-"));
        log(valueMap);
    }

    /**
     * Log the login failure activity.
     * @param credential The credential.
     */
    public void loginFailure(final OptionalThing<LoginCredential> credential) {
        final Map<String, String> valueMap = new LinkedHashMap<>();

            }
        }
        return urlSet;
    }

    /**
     * Processes the response data from a crawled URL, including failure handling.
     * This method extends the base response processing to handle Fess-specific failure
     * URL tracking when certain HTTP status codes are encountered.
     *
     * @param urlQueue the URL queue item that was processed

    delegate.addRelatedGroup(group);
    items.addAll(ImmutableList.copyOf(group));
    return this;
  }

  /** Run tests on equivalence methods, throwing a failure on an invalid test */
  @CanIgnoreReturnValue
  public EquivalenceTester<T> test() {
    for (int run = 0; run < REPETITIONS; run++) {
      testItems();
      delegate.test();
    }
    return this;
  }