private @Nullable V value;
    boolean loading = false;

    public DummyValueReference() {
      this.loading = true;
    }

    public DummyValueReference(V value) {
      this.value = value;
    }

    public static <K, V> DummyValueReference<K, V> create(V value) {
      return new DummyValueReference<>(value);
    }

    private @Nullable V value;
    boolean loading = false;

    public DummyValueReference() {
      this.loading = true;
    }

    public DummyValueReference(V value) {
      this.value = value;
    }

    public static <K, V> DummyValueReference<K, V> create(V value) {
      return new DummyValueReference<>(value);
    }

     * @param id the document ID to update
     * @param field the field name to update
     * @param value the new value for the field
     * @return true if the update was successful, false otherwise
     */
    public boolean updateDocument(final SearchEngineClient searchEngineClient, final String id, final String field, final Object value) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

                if (cookieKey.equals(cookie.getName())) {
                    final String value = cookie.getValue();
                    if (logger.isDebugEnabled()) {
                        logger.debug("{}:{}", cookieKey, value);
                    }
                    if (StringUtil.isNotEmpty(value)) {
                        parseRoleSet(value, encryptedCookieValue, roleSet);
                    }
                }
            }

        ensureBuilderMapNonNull().put(key, valuesBuilder);
      }
      while (valuesItr.hasNext()) {
        V value = valuesItr.next();
        checkEntryNotNull(key, value);
        valuesBuilder.add(value);
      }
      return this;
    }

    /**
     * Stores an array of values with the same key in the built multimap.
     *

        /**
         * Returns the value.
         *
         * @return The value.
         */
        public String getValue() {
            return value;
        }

        /**
         * Sets the value.
         *
         * @param value The value.
         */
        public void setValue(final String value) {
            this.value = value;
        }

        /**

        final String value = decodeId(id);
        final String[] values = split(value, "/").get(stream -> stream.filter(StringUtil::isNotEmpty).toArray(n -> new String[n]));
        if (values.length == 0) {
            // invalid?
            return new PathInfo(StringUtil.EMPTY, StringUtil.EMPTY);
        }
        if (values.length == 1) {

        }

        if (url.startsWith("file:////")) {
            final String value = decodeUrlAsName(url.substring(9), true);
            return abbreviateSite("\\\\" + value.replace('/', '\\'));
        }
        if (url.startsWith("file:")) {
            final String value = decodeUrlAsName(url.substring(5), true);
            if (value.length() > 2 && value.charAt(2) == ':') {
                // Windows

      K key = (K) stream.readObject();
      Collection<V> values = multimap.get(key);
      int valueCount = stream.readInt();
      for (int j = 0; j < valueCount; j++) {
        @SuppressWarnings("unchecked") // reading data stored by writeMultimap
        V value = (V) stream.readObject();
        values.add(value);
      }
    }
  }

            }
        }
    }

    /**
     * Retrieves a value from a map with a default fallback.
     *
     * @param dataMap the map to retrieve the value from
     * @param key the key to look up
     * @param defaultValue the default value to return if key is not found or value is blank
     * @return the value from the map or the default value
     */