title: unable to delete some files in build/web/WEB-INF/lib
body: <p>How do I resolve this issue in Netbeans?</p>
  
  <pre><code>Warning: unable to delete some files in build/web/WEB-INF/lib - they are probably locked by the J2EE server. 
  </code></pre>
  
  <p>Ted</p>