title: No coverage in 'all classes in scope' in Intellij
body: <p>In Intellij IDEA 14.1.5 Community edition, I imported maven to get coverage from jacoco.exec file. Steps followed</p>
  
  <ol>
  <li><p>right click on imported module.</p></li>
  <li><p>select Analyze-->Show Converage Data.</p></li>
  <li><p>provided valid jacoc.exec file and click 'show selected'</p></li>
  </ol>
  
  <p>Instead of coverage i'm getting error as <strong>no coverage in 'all classes in scope'</strong></p>
  
  <p>can anybody suggest what is wrong?</p>