title: Eclipse "source not found" rt.jar
body: <p>I'm developing Eclipse plugin, but when I want to start debugging mode, it stops and shows this:</p>
  
  <p><a href="http://i47.tinypic.com/oicbbp.png" rel="nofollow">http://i47.tinypic.com/oicbbp.png</a></p>
  
  <p>And I don't know what to do with it. Is there any solution?</p>
  
  <p><strong>[EDIT]</strong></p>
  
  <p>But if I start it normally (no debug mode), it starts without any warning or errors. It shows that error only in debug mode.</p>