SonarQube: Coverage incomplete on multimodule gradle project with JaCoCo

Question

I am building a SonarQube 6.2 server which is already analyzing my Java 8/Gradle 3.3 projects. When adding JaCoCo to a multimodule gradle project, I realized that SonarQube

Answer 1

If you are interested in the solution with sonar.jacoco.reportPaths (see answer of Godin), have looke at this gradle code:

tasks.getByName('sonarqube') {
    doFirst {
        // lazy initialize the property to collect all coverage files
        def jacocoFilesFromSubprojects = subprojects.findAll {it.plugins.hasPlugin('jacoco')}
                .collect {it.tasks.withType(Test)}.flatten().collect {it.jacoco.destinationFile}

        sonarqube.properties {
            property "sonar.jacoco.reportPaths", jacocoFilesFromSubprojects.join(',')
        }
    }
}

This will collect all coverage binary files and set them as comma-separated list to the sonar property. Considers all test tasks of sub projects where jacoco is applied and their jacoco destination file configured.