title: jacoco's prepare-agent not generating jacoco.exec file
body: <p>I am running Jacoco's Maven plugin. The <code>prepare-agent</code> goal runs fine, but does not generate <code>jacoco.exec</code> file for some reason. Subsequently the <code>report</code> goal complains <code>Skipping JaCoCo execution due to missing execution data file</code>.</p>
  
  <p>Any ideas?</p>