title: Where session variable is stored in java web application
body: <p><strong>1</strong> - Where session variables is stored in java web application ? on the client or the server side ?</p>
  
  <p><strong>2</strong> - If i put a lot of objects and variables through the session it will slow down client's requests ?   </p>
  
  <p>P.S In my case i use <code>spring mvc</code>.</p>