}
            buf.append('}');
        } else if ((obj instanceof Integer) || (obj instanceof Long) || (obj instanceof Float) || (obj instanceof Double)) {
            buf.append((obj));
        } else if (obj instanceof Boolean) {
            buf.append(obj.toString());
        } else if (obj instanceof Date) {

  }

  /** Unboxes {@code obj}. Assumes that obj is not {@code null} or a {@link SetFuture}. */
  @ParametricNullness
  private V getDoneValue(Object obj) throws ExecutionException {
    // While this seems like it might be too branch-y, simple benchmarking proves it to be
    // unmeasurable (comparing done AbstractFutures with immediateFuture)
    if (obj instanceof Cancellation) {

    public boolean contains(@CheckForNull Object obj) {
      if (obj instanceof Set) {
        Set<?> set = (Set<?>) obj;
        return inputSet.keySet().containsAll(set);
      }
      return false;
    }

    @Override
    public boolean equals(@CheckForNull Object obj) {
      if (obj instanceof PowerSet) {
        PowerSet<?> that = (PowerSet<?>) obj;

        return delegate().hashCode();
      }
    }

    @Override
    public boolean equals(@CheckForNull Object obj) {
      if (this == obj) {
        return true;
      }
      synchronized (mutex) {
        return delegate().equals(obj);
      }
    }
  }

        }
    }

    public boolean store(final String index, final Object obj) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        @SuppressWarnings("unchecked")
        final Map<String, Object> source = obj instanceof Map ? (Map<String, Object>) obj : BeanUtil.copyBeanToNewMap(obj);
        final String id = (String) source.remove(fessConfig.getIndexFieldId());

                        .filter(s -> !validateDateTimeString(source.get(s))).collect(Collectors.toList()));
    }

    default boolean validateDateTimeString(final Object obj) {
        if (FessFunctions.parseDate(obj.toString()) != null) {
            return true;
        }
        return false;
    }

    String getIndexAdminIntegerFields();

     * 
     * </blockquote>
     *
     * @param obj
     *            Another <code>SmbFile</code> object to compare for equality
     * @return <code>true</code> if the two objects refer to the same SMB resource
     *         and <code>false</code> otherwise
     */

    @Override
    public boolean equals ( Object obj ) {
        if ( obj instanceof SmbFile ) {
            SmbResource f = (SmbResource) obj;