*
     * @param propertyNames
     *            Array of property names. Must not be {@literal null} or an empty array.
     * @return This instance itself
     */
    public CopyOptions include(final CharSequence... propertyNames) {
        assertArgumentNotEmpty("propertyNames", propertyNames);

        includePropertyNames.addAll(toStringList(propertyNames));
        return this;
    }

    /**

     * Validate the protected word string.
     * @param action The action.
     * @param values The values.
     * @param propertyName The property name.
     * @param hook The error hook.
     */
    private static void validateProtwordsString(final FessBaseAction action, final String values, final String propertyName,
            final VaErrorHook hook) {
        // TODO validation
    }

            final VaErrorHook hook) {
        if (values.length == 0) {
            return;
        }
        for (final String value : values) {
            if (value.indexOf(',') >= 0) {
                action.throwValidationError(messages -> {
                    messages.addErrorsInvalidStrIsIncluded(propertyName, value, ",");
                }, hook);

            final VaErrorHook hook) {
        if (values.length == 0) {
            return;
        }
        for (final String value : values) {
            if (value.indexOf(',') >= 0) {
                action.throwValidationError(messages -> {
                    messages.addErrorsInvalidStrIsIncluded(propertyName, value, ",");
                }, hook);

                final String propertyName = entry.getKey();
                if (beanDesc.hasPropertyDesc(propertyName)) {
                    final PropertyDesc propertyDesc = beanDesc.getPropertyDesc(propertyName);
                    propertyDesc.setValue(closeableHttpClient, entry.getValue());
                } else {
                    logger.warn("Property not found in HTTP client: propertyName={}, clientClass={}", propertyName,

            }, () -> asListHtml(dictId));
        }
    }

    private static void validateStopwordsString(final String values, final String propertyName, final VaErrorHook hook) {
        // TODO validation
    }

    // ===================================================================================

        return new CopyOptions().converter(converter, propertyNames);
    }

    /**
     * Returns a {@link CopyOptions} with a date converter applied.
     *
     * @param pattern
     *            The date pattern. Must not be {@literal null} or an empty string.
     * @param propertyNames

        lastModified = propertiesFile.lastModified();
        prop.loadFromXML(in);
        properties = prop;
    }

    @Override
    public Enumeration<?> propertyNames() {
        return getProperties().propertyNames();
    }

    @Override
    public Object put(final Object key, final Object value) {
        return getProperties().put(key, value);
    }

    @Override