How to exclude a class from Jacoco coverage? - maven

Question

I want to use Jacoco in a way so that it excludes a Sample.java class from the overall coverage. To achieve that I have included <exclude> within prepare-agent goal in maven pom.xml
Jacoco plugin:
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.7.1.201405082137</version>
<executions>
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
Surefire plugin:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.4.3</version>
<configuration>
<excludes>
<exclude>**/*Sample.java</exclude>
</excludes>
</configuration>
</plugin>
properties section:
<properties>
<argLine>-Dfile.encoding=ISO-8859-1</argLine>
</properties>

Answer 1

This is the right way to configure excludes/includes for JaCoCo:
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.7.1.201405082137</version>
<executions>
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
</executions>
<configuration>
<excludes>
<exclude>**/*Sample.class</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.4.3</version>
</plugin>
</plugins>
For more details, you can go through this documentation:
http://www.jacoco.org/jacoco/trunk/doc/prepare-agent-mojo.html

Answer 2

Here's my solution, please note the exclude class pattern is class.path.className.
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<executions>
<execution>
<id>check</id>
<goals>
<goal>check</goal>
</goals>
<configuration>
<haltOnFailure>true</haltOnFailure>
<rules>
<rule>
<element>CLASS</element>
<excludes>
<exclude>com.example.className</exclude>
<exclude>com.example.config.*</exclude>
</excludes>
<limits>
<limit>
<counter>LINE</counter>
<value>COVEREDRATIO</value>
<minimum>0.80</minimum>
</limit>
</limits>
</rule>
</rules>
</configuration>
</execution>
</executions>
</plugin>
And for the config detail, please check this doco, hope it helps.