title: how to add a complete folder to a jar file by ant
body: <p>I'd like to create like a "fat" jar with ant where I have, not only the usual classes, manifest files, etc, but also my 'libs' folder too.</p>
  
  <p>I tried with:</p>
  
  <pre><code>&lt;jar destfile="myjar.jar" update="yes" basedir="${libs.dir}"/&gt;
  </code></pre>
  
  <p>but this adds the files in 'libs' the root of the jar file where I'd like to have the libs folder itself in the jar (with everything it contains of course)</p>
  
  <p>Can I maybe create the lib folder myself in the jar and add the files to that specific location in the jar then ?</p>