public class CrawlerTest extends UnitFessTestCase {

    private Crawler crawler;
    private SearchEngineClient searchEngineClient;
    private WebFsIndexHelper webFsIndexHelper;
    private DataIndexHelper dataIndexHelper;
    private PathMappingService pathMappingService;
    private CrawlingInfoService crawlingInfoService;
    private CrawlingInfoHelper crawlingInfoHelper;
    private SystemHelper systemHelper;
    private FessConfig fessConfig;

   * CompactHashMap.
   */

  private Object requireTable() {
    return requireNonNull(table);
  }

  private int[] requireEntries() {
    return requireNonNull(entries);
  }

  private @Nullable Object[] requireElements() {
    return requireNonNull(elements);
  }

  @SuppressWarnings("unchecked")
  private E element(int i) {
    return (E) requireElements()[i];
  }

    private static final class TestFileEntry implements FileEntry {
        private final String name;
        private final int type;
        private final int attributes;
        private final long createTime;
        private final long lastModified;
        private final long lastAccess;
        private final long length;
        private final int fileIndex;

  @JvmField
  var clientTestRule = OkHttpClientTestRule()

  private val listener = RecordingEventListener()
  private val handshakeCertificates = platform.localhostHandshakeCertificates()

  private var client =
    clientTestRule
      .newClientBuilder()
      .eventListenerFactory(clientTestRule.wrap(listener))
      .build()

  @StartStop
  private val server = MockWebServer()

  @BeforeEach
  fun setUp() {

public class AbstractArtifactResolutionException extends Exception {
    private String groupId;

    private String artifactId;

    private String version;

    private String type;

    private String classifier;

    private Artifact artifact;

    private List<ArtifactRepository> remoteRepositories;

    private final String originalMessage;

    private final String path;

     */
    private int allPageCount;

    /**
     * Whether a previous page exists.
     */
    private boolean existPrePage;

    /**
     * Whether a next page exists.
     */
    private boolean existNextPage;

    /**
     * The list of page numbers for navigation.
     */
    private List<Integer> pageNumberList;

    /**
     * The number of records per page.
     */

    /** The total number of records. */
    private int allRecordCount;

    /** The total number of pages. */
    private int allPageCount;

    /** Indicates if a previous page exists. */
    private boolean existPrePage;

    /** Indicates if a next page exists. */
    private boolean existNextPage;

    /** The list of page numbers. */
    private List<Integer> pageNumberList;

    /** The size of a page. */

      this.validator = validator;
    }
  }

  private enum Result {
    SUCCESS(immediateFuture(new Object())),
    FAILURE(immediateFailedFuture(new Exception()));

    final Future<Object> future;

    Result(Future<Object> result) {
      this.future = result;
    }
  }

  private enum ExceptionType {
    CHECKED(IOException.class),
    UNCHECKED(RuntimeException.class);

    runConcurrentlyMutatedTest(elements(1, 2, 3), ops(remove(), remove()), wrap);
  }

  private static ImmutableList<Integer> elements(Integer... elements) {
    return ImmutableList.copyOf(elements);
  }

  private static ImmutableList<ListFrobber> ops(ListFrobber... elements) {
    return ImmutableList.copyOf(elements);
  }

          .toFile();
    }

    @IgnoreJRERequirement // see enclosing class (whose annotation Animal Sniffer ignores here...)
    private interface PermissionSupplier {
      FileAttribute<?> get() throws IOException;
    }

    private static final PermissionSupplier filePermissions;
    private static final PermissionSupplier directoryPermissions;

    static {