title: Debugger doesn't stop at source code in Intellij IDEA
body: <p>I've rather strange issue that I can't resolve with Intellij IDEA. I was parsing email file with <code>org.apache.james.mime4j</code> package but my mail file had incompatible format of <code>Date:</code> header. So I created module from mime4j sources and removed mime4j jar from my disk. </p>
  
  <p>I've found a place where parsing happens. When I put <code>System.out.println("Something")</code> there, I see it in my console. But when I put a breakpoint right on println's line it doesn't stop. (But it stops in my <code>main()</code> function).</p>
  
  <p>Do you have any idea why this can happen? I've invalidated my cache. I use IDEA 11.1.2.</p>