jetbrick-webmvc/src/main/java/jetbrick/web/mvc/multipart/MultipartRequest.java
@Override
    public String[] getParameterValues(String name) {
        String[] values = getRequest().getParameterValues(name);

        if (values == null) {
            values = parameters.get(name);
        }

        return values;
    }
@Override
    public String[] getParameterValues(String name) {
        String[] values = getRequest().getParameterValues(name);

        if (values == null) {
            values = parameters.get(name);
        }

        return values;
    }
<p> Returns the values of a parameter in this request. It first looks
in the underlying HttpServletRequest object for the parameter, and if
that doesn't exist it looks for the parameter retrieved from the
multipart request. </p>