public static String unescapeHtml4(CharSequence html) {
		Html4Unescape unescape = new Html4Unescape();
		return unescape.replace(html).toString();
	}
@Test
	public void unescapeSingleQuotesTest(){
		String str = "&apos;some text with single quotes&apos;";
		final String s = EscapeUtil.unescapeHtml4(str);
		assertEquals("'some text with single quotes'", s);
	}