# 资料
# 步骤
项目无需任何变动，Maven命令变更为以下即可：
mvn clean org.jacoco:jacoco-maven-plugin:prepare-agent install -Dmaven.test.failure.ignore=true
# Coverage per test模式
这种模式可以详细追踪每个单元测试关联到哪些类。但是试验时不成功。
1. 修改 pom.xml
<!-- BEGIN: Specific to mapping unit tests and covered code -->
<profiles>
<profile>
<id>coverage-per-test</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<!-- Minimal supported version is 2.4 -->
<version>2.13</version>
<configuration>
<properties>
<property>
<name>listener</name>
<value>org.sonar.java.jacoco.JUnitListener</value>
</property>
</properties>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.sonarsource.java</groupId>
<artifactId>sonar-jacoco-listeners</artifactId>
<version>3.8</version>
<scope>test</scope>
</dependency>
</dependencies>
</profile>
</profiles>
<!-- END: Specific to mapping unit tests and covered code -->
2. Maven命令指定 profile
mvn clean org.jacoco:jacoco-maven-plugin:prepare-agent install -Dmaven.test.failure.ignore=true -Pcoverage-per-test
然并卵，生成的报告无任何变化。日志报：No information about coverage per test.
怀疑是 jacoco-maven-plugin 版本太高，尝试降到 0.7.5 版本，依然无用
mvn clean org.jacoco:jacoco-maven-plugin:0.7.5.201505241946:prepare-agent install -Dmaven.test.failure.ignore=true -Pcoverage-per-test
Internal 