我已经在我的pom.xml文件中配置了Maven JaCoCo插件：
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<jacoco.version>0.5.9.201207300726</jacoco.version>
</properties>
<profiles>
<profile>
<id>jacoco4</id>
<build>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>${jacoco.version}</version>
<executions>
<execution>
<goals>
<goal>prepare-agent</goal>
</goals>
<configuration
<destfile>${project.build.directory}/target/jacoco.exec</destfile>
<datafile>${project.build.directory}/target/jacoco.exec</datafile>
<output>file</output>
<append>true</append>
</configuration>
</execution>
<execution>
<id>report</id>
<phase>prepare-package</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
我使用的是Windows 7和apache-maven-3.0.4插件。当我从cygwin终端或从命令提示符终端键入mvn -P jacoco4安装时，Maven下载并运行JaCoCo插件，但是jacoco.exec文件似乎没有被创建。以下是错误信息：
[ERROR] Unable to read execution data file C:\Users\brownru\workspace64new\vps9\vps-fileserver\target\jacoco.exec: C:\Users\brownru\workspace64new\vps9\vps-fileserver\target\jacoco.exec (The system cannot find the file specified)
java.io.FileNotFoundException: C:\Users\brownru\workspace64new\vps9\vps-fileserver\target\jacoco.exec (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:120)
at org.jacoco.maven.ReportMojo.loadExecutionData(ReportMojo.java:251)
at org.jacoco.maven.ReportMojo.executeReport(ReportMojo.java:228)
at org.jacoco.maven.ReportMojo.execute(ReportMojo.java:217)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
无论我是否在配置插件中包含destfile和datafile说明符，都会显示此错误消息：
<destfile>${project.build.directory}/target/jacoco.exec</destfile>
<datafile>${project.build.directory}/target/jacoco.exec</datafile>
有人可以告诉我我做错了什么？
我和jacoco和maven有同样的麻烦。
它与父母pom相关，覆盖了okfire的配置。
在这种情况下，该插件没有使用定义代理的参数(用于jvm参数)。
它与父母pom相关，覆盖了okfire的配置。
在这种情况下，该插件没有使用定义代理的参数(用于jvm参数)。
解决方案是将“argLine”配置元素放回来
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<argLine>${argLine}</argLine>
</configuration>
</plugin>
完整的插件conf看起来像
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
<executions>
<execution>
<id>unit-test</id>
<phase>test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<skip>${maven.test.skip}</skip>
<argLine>${argLine}</argLine>
<excludes>
<exclude>**/*IntegrationTest.java</exclude>
</excludes>
</configuration>
</execution>
<execution>
<id>integration-test</id>
<phase>integration-test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<skip>${skipITs}</skip>
<argLine>${argLine}</argLine>
<includes>
<include>**/*IntegrationTest.java</include>
</includes>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.5.10.201208310627</version>
<configuration>
<skip>${maven.test.skip}</skip>
<destFile>${basedir}/target/coverage-reports/jacoco-unit.exec</destFile>
<dataFile>${basedir}/target/coverage-reports/jacoco-unit.exec</dataFile>
<output>file</output>
<append>true</append>
</configuration>
<executions>
<execution>
<id>jacoco-initialize</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>jacoco-site</id>
<phase>verify</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
希望它会有用的
