title: File Handling in Heroku App using JSP/Servlet
body: <p>I have made a simple jsp/servlet Heroku app for the following requirement. </p>
  
  <ol>
  <li>Select a file using JSP.</li>
  <li>Parse that file in servlet and manipulate some data.</li>
  <li>Create a file on local system with the manipulated data.</li>
  </ol>
  
  <p>But unfortunately, java File handing is not happening. I am not able to   even create a directly using mkDir();</p>
  
  <p>Locally everything is working fine.</p>