title: Background process in Servlet
body: <p>Is it possible to implement a background process in a servlet!?</p>
  
  <p>Let me explain.
  I have a servlet that shows some data and generate some reports.
  The generation of the report implies that the data is already present, and it is this: someone else upload these data.</p>
  
  <p>In addition to report generation, I should implement a way to send an email on arrival of new data (uploaded).</p>