* This class is designed to manage FTP authentication details for different paths.
 */
public class FtpAuthenticationHolder {
    List<FtpAuthentication> authenticationList = new ArrayList<>();

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

    /**
     * Adds an FtpAuthentication object to the holder.

    static {
        addTraverserFactory("file", (url, rootPackage, rootDir) -> new FileSystemTraverser(getBaseDir(url, rootDir), rootPackage, rootDir));
        addTraverserFactory("jar", JarFileTraverser::new);
        addTraverserFactory("zip", (url, rootPackage,
                rootDir) -> new JarFileTraverser(JarFileUtil.create(new File(ZipFileUtil.toZipFilePath(url))), rootPackage, rootDir));
        addTraverserFactory("code-source",

  }

  @GwtIncompatible
  @J2ktIncompatible
    private static Object reserialize(Object object) throws Exception {
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    new ObjectOutputStream(bytes).writeObject(object);
    return new ObjectInputStream(new ByteArrayInputStream(bytes.toByteArray())).readObject();
  }

  }

  @Override
  @J2ktIncompatible // serialization
  Object writeReplace() {
    return new EnumSerializedForm<E>(delegate);
  }

  @J2ktIncompatible // serialization
  private void readObject(ObjectInputStream stream) throws InvalidObjectException {
    throw new InvalidObjectException("Use SerializedForm");
  }

  /*
   * This class is used to serialize ImmutableEnumSet instances.

        final OpenSearchUrlQueue urlQueue = new OpenSearchUrlQueue();
        urlQueue.setCreateTime(System.currentTimeMillis());
        urlQueue.setDepth(1);
        urlQueue.setMethod("GET");
        urlQueue.setSessionId("id1");
        urlQueue.setUrl("http://www.id1.com/");

        urlQueueService.insert(urlQueue);

        final OpenSearchUrlQueue urlQueue2 = new OpenSearchUrlQueue();

    checkNotNull(valueFunction);
    return Collector.of(
        ImmutableBiMap.Builder<K, V>::new,
        (builder, input) -> builder.put(keyFunction.apply(input), valueFunction.apply(input)),
        ImmutableBiMap.Builder::combine,
        ImmutableBiMap.Builder::buildOrThrow,
        new Collector.Characteristics[0]);
  }

  static <T extends @Nullable Object, K extends Enum<K>, V>

    checkNotNull(valueFunction);
    return Collector.of(
        ImmutableBiMap.Builder<K, V>::new,
        (builder, input) -> builder.put(keyFunction.apply(input), valueFunction.apply(input)),
        ImmutableBiMap.Builder::combine,
        ImmutableBiMap.Builder::buildOrThrow,
        new Collector.Characteristics[0]);
  }

  static <T extends @Nullable Object, K extends Enum<K>, V>

      checkNotNull(unit);
      checkArgument(delay > 0, "delay must be > 0, found %s", delay);
      return new Scheduler() {
        @Override
        public Cancellable schedule(
            AbstractService service, ScheduledExecutorService executor, Runnable task) {
          return new FutureAsCancellable(
              executor.scheduleWithFixedDelay(task, initialDelay, delay, unit));
        }
      };
    }

  public final Entry<String, String>[] createArray(int length) {
    return (Entry<String, String>[]) new Entry<?, ?>[length];
  }

  @Override
  public final String[] createKeyArray(int length) {
    return new String[length];
  }

  @Override
  public final String[] createValueArray(int length) {
    return new String[length];
  }

  /** Returns the original element list, unchanged. */
  @Override

    protected String getIdKey() {
        return "doc_id";
    }

    @Override
    protected Map<String, Object> createTestParam(int id) {
        final Map<String, Object> requestBody = new HashMap<>();
        final Map<String, Object> doc = new HashMap<>();
        final String keyProp = NAME_PREFIX + id;
        doc.put(KEY_PROPERTY, keyProp);
        doc.put("url", "http://example.com/" + id);
        doc.put("boost", id);