code: private ServletRequest init() throws MultipartException, IOException {
  		// retrieve multipart/form-data parameters
  		if (Multipart.isMultipartContent(request)) {
  			Multipart multipart = new Multipart();
  			multipart.parse(request, new PartHandler() {
  
  				@Override
  				public void handleFormItem(String name, String value) {
  					multipartParams.put( name, value );
  				}
  
  				@Override
  				public void handleFileItem(String name, FileItem fileItem) {
  					files.add(fileItem);
  				}
  
  			});
  		}
  
  		return this;
  	}
docs: Initializes the path variables and the multipart content.
  
  @throws MultipartException if there is a problem parsing the multipart/form-data.
  @throws IOException if there is a problem parsing the multipart/form-data.