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

    public void test_getEncoding_utf16lebom() {
        final InputStream in = ResourceUtil.getResourceAsStream("extractor/xml/test_utf16lebom.xml");
        final BufferedInputStream bis = new BufferedInputStream(in);