public static HttpResponseStatus parseLine(CharSequence line) {
        return (line instanceof AsciiString) ? parseLine((AsciiString) line) : parseLine(line.toString());
    }
@Test
    public void parseLineStringMalformedCodeWithPhrase() {
        assertThrows(IllegalArgumentException.class, new Executable() {
            @Override
            public void execute() {
                parseLine("200a foo");
            }
        });
    }