title: Coverage view shows 0.0% in Intellij when using Jacoco
body: <p>As discussed in <a href="https://stackoverflow.com/questions/21420621/open-jacoco-report-in-intellij-idea">Open JaCoCo report in Intellij IDEA</a>, when I gather code coverage statistics using Jacoco (rather than native IntelliJ tracing) 0.0% (i.e. "no" coverage) is always shown in the coverage window.</p>
  
  <p>This is after I have done the whole "Analyze -> Show coverage data..." and selected my generated "jacoco.exec" file.</p>
  
  <p>The same "jacoco.exec" file works fine with other tools such as the Jacoco native report generation task, and with Sonar, and these produce the expected coverage report content.</p>
  
  <p>Also native IntelliJ instrumentation works fine.</p>
  
  <p>Can anybody advise me if there is some essential step I must perform to get IntelliJ to accept my Jacoco coverage?</p>