Steps for Integrating Jacoco in IntelliJ IDEA

README.md

1. Integrate the dependency and plugin sections to relevant parts in your pom.xml from the pom.xml_fragment file below.
2. Run "mvn clean package" to generate the results
3. In IntelliJ, Select "Analyse -> Show Coverage Data..." and pick your Jacoco output file. This should be the path specified in the plug-in config i.e: ${basedir}/target/coverage-reports/jacoco-unit.exec

Output should be displayed in the IDE and you should also have the classes overlayed with test coverage.

pom.xml_fragment

 <!-- https://mvnrepository.com/artifact/org.jacoco/jacoco-maven-plugin -->
        <dependency>
            <groupId>org.jacoco</groupId>
            <artifactId>jacoco-maven-plugin</artifactId>
            <version>0.7.7.201606060606</version>
        </dependency>


<build>
        <plugins>
            <plugin>
                <groupId>org.jacoco</groupId>
                <artifactId>jacoco-maven-plugin</artifactId>
                <version>0.7.7.201606060606</version>
                <configuration>
                    <destFile>${basedir}/target/coverage-reports/jacoco-unit.exec</destFile>
                    <dataFile>${basedir}/target/coverage-reports/jacoco-unit.exec</dataFile>
                </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
        </plugins>
  </build>