Jacoco不制作报道

Question

             <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-release-plugin</artifactId>
                <version>2.5.2</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.10</version>
                <configuration>
                    <parallel>classes</parallel>
                     <threadCount>8</threadCount>
                     <forkCount>4</forkCount>
                     <encoding>UTF-8</encoding>
                    <inputEncoding>UTF-8</inputEncoding>
                    <outputEncoding>UTF-8</outputEncoding>
                    <argLine>-Xms256m -Xmx512m -XX:MaxPermSize=128m -ea
                        -Dfile.encoding=UTF-8</argLine>
                     </configuration>
            </plugin>

下面是Jacoco插件的样子。

<plugin>
                <groupId>org.jacoco</groupId>
                <artifactId>jacoco-maven-plugin</artifactId>
                <version>0.8.0</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>

Answer 1

引用http://www.jacoco.org/jacoco/trunk/doc/prepare-agent-mojo.html：

如果您的项目已经为测试执行定义了VM参数，请确保它们将包括Jacoco定义的属性。

对于maven-surefire-plugin-，其中一种方法是使用语法进行后期属性评估：

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-surefire-plugin</artifactId>
  <configuration>
    <argLine>@{argLine} -your -extra -arguments</argLine>
  </configuration>
</plugin>

另一种方法是将“argline”定义为Maven属性，而不是作为maven-surefire-plugin配置的一部分：

<properties>
  <argLine>-your -extra -arguments</argLine>
</properties>
...
<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-surefire-plugin</artifactId>
  <configuration>
    <!-- no argLine here -->
  </configuration>
</plugin>

所以要么定义

<argLine>-Xms256m -Xmx512m -XX:MaxPermSize=128m -ea
                    -Dfile.encoding=UTF-8</argLine>

作为属性：

<build>
  <properties>
    <argLine>-Xms256m -Xmx512m -XX:MaxPermSize=128m -ea
                    -Dfile.encoding=UTF-8</argLine>
  </properties>
...
  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.10</version>
    <configuration>
      <!-- no argLine here -->

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-surefire-plugin</artifactId>
  <version>2.10</version>
  <configuration>
    <argLine>@{argLine} -Xms256m -Xmx512m -XX:MaxPermSize=128m -ea
                    -Dfile.encoding=UTF-8</argLine>