title: Glassfish taking 20s to do hot deployment, is that right?
body: <p>I'm working in a <code>JSF</code> project with <code>Eclipse</code> and <code>Glassfish 3.1.2</code>.
  Every time I did a minor change and save it, Glassfish do the <code>hot deployment</code>, but is taking too much time to do that, about <code>20s</code>, at least.</p>
  
  <p>Can I do something do deacrease this time ? Is horrible develop something where you have to wait all time time everytime I change something.</p>
  
  <p><strong>UPDATE</strong>
  This is how my project settings.</p>
  
  <p><img src="https://i.stack.imgur.com/f1XcH.jpg" alt="enter image description here"></p>
  
  <p>Just open the folder below, this surprise me, is this so many .jar files, is this correct ?</p>
  
  <p><img src="https://i.stack.imgur.com/PjE1u.jpg" alt="enter image description here"></p>
  
  <p>And this one:</p>
  
  <p><img src="https://i.stack.imgur.com/5dzbI.jpg" alt="enter image description here"></p>
  
  <p>My Glassfish configuration :</p>
  
  <p><img src="https://i.stack.imgur.com/OjO6V.jpg" alt="enter image description here">
  Any idea ?</p>