@Override
        public int getIntHeader(String name) {
            if ("Content-Length".equalsIgnoreCase(name)) {
                return -1;
            } else if ("Content-MD5".equalsIgnoreCase(name)) {
                return -1;
            } else if ("Content-Encoding".equalsIgnoreCase(name)) {
                return -1;
            } else if ("Content-Type".equalsIgnoreCase(name)) {
                return -1;
            } else {
                return super.getIntHeader(name);
            }
        }
@see jakarta.servlet.http.HttpServletRequestWrapper#getIntHeader(java.lang.String)
src/nu/validator/servlet/MultipartFormDataFilter.java