protected String calculateHttpEncoding(final String httpContentType, final String bomEnc, final String xmlGuessEnc, final String xmlEnc, final boolean lenient, final String defaultEncoding) throws IOException { final MockXmlStreamReader mock = new MockXmlStreamReader(defaultEncoding); final String enc = mock.calculateHttpEncoding(httpContentType, bomEnc, xmlGuessEnc, xmlEnc, lenient); mock.close(); return enc; }