title: Why are Eclipse project folders marked Derived still showing up in the Synchronization view?
body: <p>How can I get the Sync view to ignore my Derived folders in Eclipse?</p>
  
  <hr>
  
  <p>In the past, I recall that marking my Ant build output folders as Derived (right-click on folder, select properties, check the Derived checkbox) would:</p>
  
  <ul>
  <li>keep them from showing up in the Open Resource dialog</li>
  <li>correctly ignore them as not being legitimate outgoing changes in my CVS Sync view</li>
  </ul>
  
  <p>When I mark the Ant build folder as Derived now, the contents are still showing up in my Sync view as outgoing changes.</p>
  
  <p>What am I doing wrong?  Has something changed with Eclipse?</p>
  
  <p>I have tried cleaning, rebuilding, opening and closing the project, re-importing the project, and launching Eclipse with the -clean option.</p>
  
  <p>Eclipse Version: 3.6.2, Build id: M20110210-1200</p>