title: code coverage with emma / sonar / jacoco
body: <p>We measure the code coverage in a gwt project with emma, as described here: <a href="http://www.gwtproject.org/doc/latest/DevGuideTestingCoverage.html" rel="nofollow">http://www.gwtproject.org/doc/latest/DevGuideTestingCoverage.html</a></p>
  
  <p>This works and I get the html report, the <code>emma.em</code> and the <code>emma.ec</code> file.</p>
  
  <p>On sonar I have only jacoco as coverage recording, which doesn't work for gwt unit tests.
  But there is the possibility to import jacoco.exec files: <code>sonar.jacoco.reportPath</code></p>
  
  <p>How can I convert now the <code>emma.em</code> and/or the <code>emma.ec</code> file to the jacoco.exec format?
  Or is it possible to generate <code>jacoco.exec</code> files directly from emma?</p>