final BufferedInputStream bis = new BufferedInputStream(in);
        final String encoding = xmlExtractor.getEncoding(bis);
        CloseableUtil.closeQuietly(bis);
        assertEquals("UTF-8", encoding);
    }

    public void test_getEncoding_sjis() {
        final InputStream in = ResourceUtil.getResourceAsStream("extractor/test_sjis.xml");
        final BufferedInputStream bis = new BufferedInputStream(in);

        final BufferedInputStream bis = new BufferedInputStream(in);
        final String encoding = htmlXpathExtractor.getEncoding(bis);
        CloseableUtil.closeQuietly(bis);
        assertEquals("UTF-8", encoding);
    }

    public void test_getEncoding_sjis() {
        final InputStream in = ResourceUtil.getResourceAsStream("extractor/test_sjis.html");
        final BufferedInputStream bis = new BufferedInputStream(in);

            throw new CrawlerSystemException("The inputstream is null.");
        }
        try {
            final BufferedInputStream bis = new BufferedInputStream(in);
            final String enc = getEncoding(bis);
            final String content = UNESCAPE_HTML4.translate(new String(InputStreamUtil.getBytes(bis), enc));
            return createExtractData(content);
        } catch (final Exception e) {
            throw new ExtractException(e);

                // XML Sitemaps
                bis.reset();
                return parseXmlSitemaps(bis);
            }
            if (preloadDate.indexOf("<sitemapindex") >= 0) {
                // XML Sitemaps Index
                bis.reset();
                return parseXmlSitemapsIndex(bis);
            }

        final BufferedInputStream bis = new BufferedInputStream(in);
        final String encoding = htmlExtractor.getEncoding(bis);
        CloseableUtil.closeQuietly(bis);
        assertEquals("UTF-8", encoding);
    }

    public void test_getEncoding_sjis() {
        final InputStream in = ResourceUtil.getResourceAsStream("extractor/test_sjis.html");
        final BufferedInputStream bis = new BufferedInputStream(in);

        try (BufferedInputStream bis = new BufferedInputStream(inputSupplier.open(), BUFFER_SIZE)) {
            bis.mark(BUFFER_SIZE);
            XMLStreamReader xsr = XMLInputFactory.newFactory().createXMLStreamReader(bis);
            xsr.nextTag();
            String nsUri = xsr.getNamespaceURI();
            try (BufferedInputStream bis2 = reset(inputSupplier, bis)) {

        }
        try {
            final BufferedInputStream bis = new BufferedInputStream(in);
            final String enc = getEncoding(bis);

            final DOMParser parser = getDomParser();
            final InputSource inputSource = new InputSource(bis);
            inputSource.setEncoding(enc);
            parser.parse(inputSource);

        }

        final ResultData resultData = new ResultData();
        resultData.setTransformerName(getName());

        try (BufferedInputStream bis = new BufferedInputStream(responseData.getResponseBody())) {
            resultData.setData(IOUtils.toByteArray(bis));
            resultData.setEncoding(responseData.getCharSet());
            return resultData;
        } catch (final IOException e) {

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        final DOMParser parser = getDomParser();
        try (final BufferedInputStream bis = new BufferedInputStream(responseData.getResponseBody())) {
            final byte[] bomBytes = new byte[UTF8_BOM_SIZE];
            bis.mark(UTF8_BOM_SIZE);
            final int size = bis.read(bomBytes);
            if (size < 3 || !isUtf8BomBytes(bomBytes)) {
                bis.reset();
            }
            final InputSource is = new InputSource(bis);