Kotlin app 0% code coverage?

We rewrote an app from Java to Kotlin, and now Sonar says 0% code coverage for the app, while Jacoco HTML says 58%. Any ideas on how to resolve?

  • ALM used: GitLab
  • CI system used: Jenkins
  • Scanner command used when applicable: ./gradlew -DtestBuildType=debug app:jacocoTestReport; ./gradlew sonar
  • apply plugin: “org.sonarqube”
    sonar {
    properties {
    property “sonar.projectKey”, “…”
    property “sonar.organization”, “…”
    property “sonar.host.url”, “https://sonarcloud.io
    property “sonar.c.file.suffixes”, “-”
    property “sonar.cpp.file.suffixes”, “-”
    property “sonar.objc.file.suffixes”, “-”
    property “sonar.coverage.jacoco.xmlReportPaths”, “build/reports/jacoco.xml”
  • Languages of the repository: Android Java, Kotlin

Version of Gradle plugins:

  • org.sonarsource.scanner.gradle:sonarqube-gradle-plugin:
  • org.jacoco:org.jacoco.core:0.8.8

Best regards

Hi Arne,

Welcome to the community!

Can you post your analysis log?

The analysis / scanner log is what’s output from the analysis command. Hopefully, the log you provide - redacted as necessary - will include that command as well.

This guide will help you find them.


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Hi G. Ann, sorry for late reply caused by vacation & funeral.

This week we found out the reason why we got 0% coverage of the Kotlin Android app, the class path is different for Java and Kotlin:

  • Java: “${buildDir}/intermediates/javac/debug/classes”
  • Kotlin: “${buildDir}/tmp/kotlin-classes/debug”

After adding the class path for Kotlin as above, got code coverage. So issue is resolved now, thanks.

Best regards,

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