The whole structure of application is like there a root pom, there are n number of modules and I have created one aggregator module. This is how my pom.xml for the aggregator sub module looks like.
<build>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<executions>
<execution>
<id>merge-reports</id>
<phase>verify</phase>
<goals>
<goal>merge</goal>
</goals>
<configuration>
<fileSets>
<fileSet>
<directory>..</directory>
<includes>
<include>**/target/jacoco.exec</include>
</includes>
</fileSet>
</fileSets>
<destFile>${project.build.directory}/jacoco.exec</destFile>
</configuration>
</execution>
<execution>
<id>report-aggregate</id>
<phase>verify</phase>
<goals>
<goal>report-aggregate</goal>
</goals>
<configuration>
<dataFileIncludes>
<dataFileInclude>**/jacoco.exec</dataFileInclude>
</dataFileIncludes>
<outputDirectory>${project.build.directory}/aggregated-report</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
Maven logs :
[INFO] Loading execution data file /Users/.....A...../target/jacoco.exec
[INFO] Loading execution data file /Users/.....B...../target/jacoco.exec
[INFO] Loading execution data file /Users/.....C...../target/jacoco.exec
[INFO] Loading execution data file /Users/.....D...../target/jacoco.exec
[INFO] Writing merged execution data to /Users/.....X..../target/jacoco.exec
[INFO]
[INFO] --- jacoco-maven-plugin:0.8.8:report-aggregate (report-aggregate) @ reporting ---
[INFO] Loading execution data file /Users/.....X..../target/jacoco.exec
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
I am able to get merged jacoco.exec from my merge goal but while running report-aggregate goal, I am getting empty report.