final List<String> list = new ArrayList<>();
            list.add(value.toString());
            return list;
        }
        if (value instanceof List) {
            return (List<String>) value;
        }
        throw new IllegalArgumentException("The value should be String or List, but " + value.getClass());
    }

    /**

            final String value = info.getCustomMetadataValue(key);
            addMetadata(extractData, key, value);
        }
    }

    /**
     * Adds metadata to the extraction data if the value is not null.
     * @param extractData the extraction data
     * @param name the metadata name
     * @param value the metadata value
     */

        String actual;
        String value;

        value = "hoge.txt";
        expected = "hoge.txt";
        actual = extractor.getFileName(value);
        assertEquals(expected, actual);

        value = "/hoge.txt";
        expected = "hoge.txt";
        actual = extractor.getFileName(value);
        assertEquals(expected, actual);

        value = "fuga/hoge.txt";
        expected = "hoge.txt";

     *
     * @param name The property name
     * @param value The property value
     */
    public void addHttpClientProperty(final String name, final Object value) {
        if (StringUtil.isNotBlank(name) && value != null) {
            httpClientPropertyMap.put(name, value);
        }
    }

    /**
     * Processes robots.txt for the given URL.

    /** The maximum number of times to check for active threads. */
    protected int maxThreadCheckCount = 20;

    /** The maximum depth for crawling. A value of -1 indicates no depth check. */
    protected int maxDepth = -1;

    /** The maximum number of URLs to access. A value of 0 indicates no limit. */
    protected long maxAccessCount = 0;

    /**
     * Returns the session ID.
     * @return The session ID.
     */

         *
         * @param value The Date object to convert.
         * @return The ISO 8601 formatted date string, or null if value is not a Date.
         */
        @Override
        public String getAsString(final Object value) {
            if (value instanceof Date) {
                return DEFAULT_DATE_PRINTER.print(((Date) value).getTime());
            }
            return null;
        }

    public static final String LANGUAGES = "languages";

    /** The key for array elements. */
    public static final String ARRAY_KEY = "key";
    /** The value for array elements. */
    public static final String ARRAY_VALUE = "value";

    /** The analyzer settings type field. */
    public static final String ANALYZER_SETTINGS_TYPE = "settingsType";
    /** The analyzer settings field name. */

    /**
     * Returns the creation time of the URL queue entry.
     *
     * @return the creation time as a Long value.
     */
    Long getCreateTime();

    /**
     * Sets the creation time of the URL queue.
     *
     * @param createTime the creation time to set, represented as a Long value.
     */
    void setCreateTime(Long createTime);

    /**
     * Retrieves the weight of the URL queue.

        </ul>
    </div>
    <div id="content"></div>
    <div id="form">
        <form method="post" action="form.html">
            <input type="text" name="query" value="aaa">
            <input type="hidden" name="secret" value="xxx">
            <input type="submit" name="Submit">
        </form>
    </div>
	<a href="#" onclick="addFooter('XXX')">Footer</a>
	<div id="footer">
	</div>
</body>

     * @param cause the cause (which is saved for later retrieval by the {@link #getCause()} method).
     *              (A {@code null} value is permitted, and indicates that the cause is nonexistent or unknown.)
     */
    public ExtractException(final String message, final Throwable cause) {
        super(message, cause);
    }

    /**