assertEquals("太郎", extractData.getValues("dc:creator")[0]);
        assertEquals("かいしゃ", extractData.getValues("extended-properties:Company")[0]);
        assertEquals("1", extractData.getValues("xmpTPg:NPages")[0]);
        assertEquals("2009-06-26T21:41:00Z", extractData.getValues("dcterms:created")[0]);
        assertEquals("2012-05-18T22:45:00Z", extractData.getValues("dcterms:modified")[0]);

        logger.info(content);
        assertTrue(content.contains("テスト"));
        assertEquals("Writer", extractData.getValues("Creator")[0]);
        assertEquals("OpenOffice.org 3.0", extractData.getValues("Producer")[0]);
        assertEquals("D:20090627222631+09'00'", extractData.getValues("CreationDate")[0]);
    }

    public void test_getText_pass() {

            assertTrue(data.getValues("Subject")[0].contains("気象情報"));
        }
    }

    public void test_getReceivedDate() throws IOException {
        try (final InputStream in = ResourceUtil.getResourceAsStream("extractor/eml/sample1.eml")) {
            ExtractData data = emlExtractor.getText(in, null);
            final String[] receivedDate = data.getValues("Received-Date");

        final String content = data.getContent();
        CloseableUtil.closeQuietly(in);
        logger.info(content);
        assertTrue(content.contains("テスト"));
        assertEquals("タイトル", data.getValues("title")[0]);
    }

    public void test_getHtml_sjis() {
        final InputStream in = ResourceUtil.getResourceAsStream("extractor/test_sjis.html");
        final ExtractData data = htmlExtractor.getText(in, null);

    /**
     * Gets the values associated with a given key from the metadata.
     *
     * @param key the metadata key
     * @return the values associated with the key, or null if not found
     */
    public String[] getValues(final String key) {
        return metadata.get(key);
    }

    /**
     * Gets the set of all metadata keys.
     *
     * @return the set of metadata keys
     */

     * Concatenates values to a destination list, avoiding duplicates.
     * @param dest The destination list.
     * @param newValues The new values to add.
     * @param <T> The type of the values.
     */
    protected static <T> void concatValues(final List<T> dest, final T... newValues) {
        for (final T value : newValues) {
            if (!dest.contains(value)) {
                dest.add(value);
            }
        }
    }

                            if (lowerName.contains("comment") || lowerName.contains("text")) {
                                final String[] values = metadata.getValues(name);
                                if (values != null) {
                                    Collections.addAll(list, values);
                                }
                            }