@Override
    public int hashCode() {
        int result = 1;
        result = 31 * result + status.hashCode();
        result = 31 * result + super.hashCode();
        return result;
    }
@Test
    public void testNotEquals() {
        HttpResponse ok = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
        HttpResponse notFound = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.NOT_FOUND);
        assertNotEquals(ok, notFound);
        assertNotEquals(ok.hashCode(), notFound.hashCode());
   }