Jacoco Maven multi module project coverage

Question

Seems like there are couple of questions, which are quite old and things changed from Java 8 support of Jacoco.

My Project contains following structure

pom.xml | | -----sub module A pom.xml | | -----sub module B pom.xml | | -----sub module C pom.xml 

I have configured the main pom like this

Main POM.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">     <modelVersion>4.0.0</modelVersion>     <groupId>com.test</groupId>     <artifactId>jacoco-multi</artifactId>     <version>0.0.1-SNAPSHOT</version>     <packaging>pom</packaging>     <modules>         <module>projectA</module>         <module>projectB</module>     </modules>      <properties>         <jacoco.version>0.5.7.201204190339</jacoco.version>     </properties>      <dependencies>         <dependency>             <groupId>junit</groupId>             <artifactId>junit-dep</artifactId>             <version>4.10</version>             <scope>test</scope>             <exclusions>                 <exclusion>                     <groupId>org.hamcrest</groupId>                     <artifactId>hamcrest-core</artifactId>                 </exclusion>             </exclusions>         </dependency>          <dependency>             <groupId>org.hamcrest</groupId>             <artifactId>hamcrest-core</artifactId>             <version>1.3.RC2</version>             <scope>test</scope>         </dependency>          <dependency>             <groupId>org.hamcrest</groupId>             <artifactId>hamcrest-library</artifactId>             <version>1.3.RC2</version>             <scope>test</scope>         </dependency>     </dependencies>      <build>         <plugins>             <plugin>                 <groupId>org.jacoco</groupId>                 <artifactId>jacoco-maven-plugin</artifactId>                 <version>0.7.5.201505241946</version>                 <configuration>                     <destFile>${project.basedir}/../target/jacoco.exec</destFile>                     <append>true</append>                 </configuration>                 <executions>                     <execution>                         <id>jacoco-initialize</id>                         <goals>                             <goal>prepare-agent</goal>                         </goals>                     </execution>                     <execution>                         <id>jacoco-site</id>                         <phase>package</phase>                         <goals>                             <goal>report</goal>                         </goals>                     </execution>                 </executions>             </plugin>             <plugin>                 <groupId>org.apache.maven.plugins</groupId>                 <artifactId>maven-failsafe-plugin</artifactId>                 <version>2.16</version>                 <executions>                     <execution>                         <id>default-integration-test</id>                         <goals>                             <goal>integration-test</goal>                         </goals>                     </execution>                 </executions>             </plugin>             <plugin>                 <groupId>org.apache.maven.plugins</groupId>                 <artifactId>maven-surefire-plugin</artifactId>                 <version>2.16</version>             </plugin>         </plugins>     </build>  </project> 

A Pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">     <modelVersion>4.0.0</modelVersion>     <parent>         <artifactId>jacoco-multi</artifactId>         <groupId>com.test</groupId>         <version>0.0.1-SNAPSHOT</version>         <relativePath>..</relativePath>     </parent>     <artifactId>projectA</artifactId>      <build>         <pluginManagement>             <plugins>                 <plugin>                     <groupId>org.apache.maven.plugins</groupId>                     <artifactId>maven-surefire-plugin</artifactId>                     <version>2.12</version>                 </plugin>              </plugins>         </pluginManagement>     </build>  </project> 

B pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent>     <artifactId>jacoco-multi</artifactId>     <groupId>com.test</groupId>     <version>0.0.1-SNAPSHOT</version>     <relativePath>..</relativePath> </parent> <artifactId>projectB</artifactId>  <dependencies>     <dependency>         <groupId>com.test</groupId>         <artifactId>projectA</artifactId>         <version>0.0.1-SNAPSHOT</version>     </dependency> </dependencies>  <build>     <pluginManagement>         <plugins>             <plugin>                 <groupId>org.apache.maven.plugins</groupId>                 <artifactId>maven-surefire-plugin</artifactId>                 <version>2.12</version>             </plugin>         </plugins>     </pluginManagement> </build> 

I am executing this command mvn clean package. I can see jacoco.exec is getting generated, however I am not able to see any HTML reports are being to verify the data.

Please help me with this. Another point is, my configuration is correct for Multi-Module projects?

Update

Identified issue. <destFile>${project.basedir}/../target/jacoco.exec</destFile> changed to <destFile>${project.basedir}/target/jacoco.exec</destFile>

Now it's generating reports for individual modules. Any idea how to generate consolidated report

Answer 1

JaCoCo version 0.7.7 can generate an aggregate coverage report from multiple Maven modules through a new goal jacoco:report-aggregate.