无法让Jacoco使用离线仪器与Powermockito一起工作

鉴于 Jacoco 在“动态”检测时不能很好地使用 PowerMockito，我一直在尝试配置离线检测，希望这能为使用 PowerMockito 的类提供适当的单元测试覆盖率。

我已经按如下方式设置了我的pom，但我的测试类覆盖率仍然为零。任何帮助都非常感谢，因为它正在驱使我慢慢疯狂！

<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>mandy</groupId>
    <artifactId>jacoco-test</artifactId>
    <packaging>war</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>jacoco-test Maven Webapp</name>
    <url>http://maven.apache.org</url>
    <properties>
        <powermock.version>1.5.4</powermock.version>
        <jacoco.version>0.7.1.201405082137</jacoco.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.jacoco</groupId>
            <artifactId>org.jacoco.agent</artifactId>
            <classifier>runtime</classifier>
            <version>${jacoco.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-module-junit4</artifactId>
            <version>${powermock.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-api-mockito</artifactId>
            <version>${powermock.version}</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.10</version>
            <scope>test</scope>
        </dependency>

    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.3.2</version>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.jacoco</groupId>
                <artifactId>jacoco-maven-plugin</artifactId>
                <version>${jacoco.version}</version>
                <executions>
                    <execution>
                        <id>instrument</id>
                        <phase>process-classes</phase>
                        <goals>
                            <goal>instrument</goal>
                        </goals>
                    </execution>
                    <execution>
                        <id>restore-report</id>
                        <phase>prepare-package</phase>
                        <goals>
                            <goal>restore-instrumented-classes</goal>
                            <goal>report</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.17</version>
                <configuration>
                    <!--<argLine>${argLine}</argLine>-->
                    <systemPropertyVariables>
                        <!-- JaCoCo runtime must know where to dump coverage: -->
                        <jacoco-agent.destfile>target/jacoco.exec</jacoco-agent.destfile>
                    </systemPropertyVariables>
                </configuration>
            </plugin>
        </plugins>
        <finalName>jacoco-test</finalName>
    </build>
</project>

这是我的类测试：

public class Utils {

    private Utils() {

    }

    public static String say(String s) {
        return "hello:"+s;
    }
}

这是我的测试：

@RunWith(PowerMockRunner.class)

@PrepareOnlyThisForTest(Utils.class)
@PowerMockIgnore("org.jacoco.agent.rt.*")
public class UtilsTest {

    @Test
    public void testSay() throws Exception {
        PowerMockito.mockStatic(Utils.class);
        Mockito.when(Utils.say(Mockito.anyString())).thenReturn("hello:mandy");
        assertEquals("hello:mandy", Utils.say("sid"));
    }

}

我运行mvn干净安装，它生成了jacoco.exe

覆盖率报告（使用 ant 脚本从 jacoco.exec 生成）：-