Aggregated Coverage for Multi-Module Maven Project

SonarQube
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1

Hi,
we are trying to gather aggregated coverage for our multi-module projects.
Our plugin configuration:

<plugin>
                    <groupId>org.jacoco</groupId>
                    <artifactId>jacoco-maven-plugin</artifactId>
                    <version>${jacoco.version}</version>
                    <executions>
                        <execution>
                            <id>pre-unit-test</id>
                            <goals>
                                <goal>prepare-agent</goal>
                            </goals>
                        </execution>
                        <execution>
                            <id>pre-integration-test</id>
                            <goals>
                                <goal>prepare-agent-integration</goal>
                            </goals>
                            <configuration>
                                <append>true</append>
                                <destFile>${project.build.directory}/jacoco.exec</destFile>
                                <propertyName>failsafeArgLine</propertyName>
                            </configuration>
                        </execution>
                        <execution>
                            <id>post-integration-test</id>
                            <phase>post-integration-test</phase>
                            <goals>
                                <goal>report</goal>
                            </goals>
                        </execution>
                        <!-- Goal check is bound to the verify phase -->
                        <execution>
                            <id>default-check</id>
                            <goals>
                                <goal>check</goal>
                            </goals>
                            <configuration>
                                <rules>
                                    <rule>
                                        <element>BUNDLE</element>
                                        <limits>
                                            <limit>
                                                <counter>BRANCH</counter>
                                                <value>COVEREDRATIO</value>
                                                <minimum>${jacoco.coveredratio}</minimum>
                                            </limit>
                                        </limits>
                                    </rule>
                                </rules>
                            </configuration>
                        </execution>
                        <execution>
                            <id>report-aggregate</id>
                            <phase>verify</phase>
                            <goals>
                                <goal>report-aggregate</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>

Our SonarQube properties

<sonar.core.codeCoveragePlugin>jacoco</sonar.core.codeCoveragePlugin>
<sonar.coverage.jacoco.xmlReportPaths>target/site/jacoco-aggregate/jacoco.xml</sonar.coverage.jacoco.xmlReportPaths>

We do get the jacoco-aggregate folder generated. However SonarQube show the coverage as 0%.
If use the jacoco/jacoco.xml file, the coverage is shown.

I verified that the aggregated xml files have proper content and they do look fine for me.

Any idea or hints how I could get this working.

2

wanted to follow up on this.
Has anyone any experience how to gather aggregated coverage using jacoco and sonarqube?

4

Hi Timo,

You need to set in each module a relative path for sonar.coverage.jacoco.xmlReportPaths to the aggregated report using ../
e.g.:

<sonar.coverage.jacoco.xmlReportPaths>${project.basedir}/../path_to_module_with_report/target/site/jacoco-aggregate/jacoco.xml</sonar.coverage.jacoco.xmlReportPaths>`

See § Multi-module builds of [Coverage & Test Data] Importing JaCoCo coverage report in XML format

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