MultipartParse upload image

Hey,

i got the code from this link

 https://www.experts-exchange.com/Programming/Languages/Java/J2EE/JSP/Q_20878588.html?sfQueryTermInfo=1+imag+jsp+upload

and i tried to run it on my machine . i have MultipartParser installed in my project correctly. but when i try to use the above method to use MultipartParser package i got this error:
cannot find symbol
---------------------------------------
 if (fileName != null) {

            filePart.writeTo(dir);
            files.put(name, new UploadedFile(    //files is a variable of the class MultipartRequest
                        dir.toString(), fileName, filePart.getContentType()));
          }
          else {

            files.put(name, new UploadedFile(null, null, null));
          }
-----------------------------------------

i don't know where the hill this constructor UploadedFile defined ? is it in orielly packge?

help please