Code Coverage is showing 0% for java projects

SonarQube Server / Community Build
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6

Hi @ganncamp and @puci ,

I am pleased to inform you that our issue is resolved.
I would like to share the fix so that anyone facing the same issue may get the help.

Possible Causes:

  • Unit test cases are missing.
  • sonar-maven-plugin is not defined in pom.xml file.
  • Language and tool-specific maven plugin (for an example, Jacoco) is not defined in pom.xml
  • Jacoco plugin related configuration in pom.xml is not correct.

Solutions:

  • SonarQube doesn’t run your tests or generate reports. It only imports pre-generated reports. We have to use language and tool-specific analysis parameters for importing coverage and execution reports. Please ensure that you have at least one unit test case defined for your project.

  • Please ensure that sonar-maven-plugin is defined in pom.xml:

<plugin>
  <groupId>org.sonarsource.scanner.maven</groupId>
  <artifactId>sonar-maven-plugin</artifactId>
  <version>3.7.0.1746</version>
</plugin>
  • Please ensure that jacoco related configuration is correct:
<plugin>
   <groupId>org.jacoco</groupId>
   <artifactId>jacoco-maven-plugin</artifactId>
   <version>0.8.6</version>
   <executions>
      <execution>
          <id>prepare-agent</id>
          <goals>
             <goal>prepare-agent</goal>
          </goals>
          <phase>test-compile</phase>
      </execution>
      <execution>
          <id>report</id>
          <goals>
             <goal>report</goal>
          </goals>
          <phase>test</phase>
      </execution>
    </executions>
</plugin>
  • If your jacoco reports are generated at custom path (other than default path: target/site/jacoco/jacoco.xml ) OR if you are using deprecated sonar property( sonar.jacoco.reportPaths ) for jacoco then please update sonar property as below:
    <sonar.coverage.jacoco.xmlReportPaths>your/custom/path/jacoco.xml</sonar.coverage.jacoco.xmlReportPaths>

Reference: Test Coverage & Execution | SonarQube Docs

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