What is the correct way to populate the validation faild file input field of the form so that it could be displayed in JSP file in Spring?

The submited csvUploadForm which contains a file input field has been populated successfully and the csvValidator works fine.

I want it to be displayed once more in the JSP file so as to acknowledge the validation failed file input field.

The strange thing is that form:errors path="feedItem" works just fine while form:input path="feedItem" is always empty.

What is the problem?

@RequestMapping(value = "upload", method = RequestMethod.POST)
public ModelAndView csvUploadCheck(@ModelAttribute("csvUploadBean") CSVUploadBean csvUploadForm,
        BindingResult bindingResult)
        throws Exception {
    csvValidator.validate(csvUploadForm, bindingResult);
    if (bindingResult.hasErrors()) {
        ModelAndView modelAndView = this.initFormModelAndView();
        List<String> errors = buildErrorMessages(bindingResult);
        modelAndView.addObject(CSV_MODEL_ATTRIBUTE, csvUploadForm);
        modelAndView.addObject("errors", errors);
        return modelAndView;
    } else {
        final ContentModelAndView redirectModelView = new ContentModelAndView();
        redirectModelView.setViewName("redirect:foo");
        return redirectModelView;
    }
}



<form:form  method="POST" modelAttribute="csvUploadBean" enctype="multipart/form-data">
    <a:section id="mylayout-middle">
        <c:forEach items="${errors}" var="error">
            <a:alert alertType="${'error'}" spacing="${'base'}">
                "${error}"
              </a:alert>
        </c:forEach>

        <form:input path="feedItem" name="feedItem" type="file" />
        <form:errors path="feedItem" cssStyle="color: #ff0000;" 
</form:form>