title: What are derived files in Eclipse?
body: <p>I have problem with derived files. Some of my files in my project are 'derived'.
  When I want to edit these files, I get the following message:</p>
  <blockquote>
  <p>&quot;This file is derived&quot;</p>
  <p>&quot;Do you really want to edit?&quot;</p>
  </blockquote>
  <p>When I right click on this file and choose properties, I see that &quot;Archived&quot; is marked.</p>
  <p>I think this is a problem with Maven, but I don't know how to fix this or know why part of my files are 'derived'.</p>