Cobertura给出的参数列表太长了

Question

我正在尝试使用cobertura插件生成代码覆盖率报告.

我在我的pom.xml中有这种依赖

<plugin>
     <groupId>org.codehaus.mojo</groupId>
     <artifactId>cobertura-maven-plugin</artifactId>
     <version>2.6</version>
     <executions>
         <execution>
             <phase>test</phase>
             <goals>
              <goal>cobertura</goal>
             </goals>
             <configuration>
                 <formats>
                     <format>html</format>
                     <format>xml</format>
                  </formats>
             </configuration>
         </execution>
     </executions>
  <configuration>
      <formats>
          <format>html</format>
          <format>xml</format>
    </formats>
</configuration>

当我使用这个目标构建我的项目-U -B clean install cobertura:cobertura时,我在jenkins CI上得到以下错误

 16:37:31 [ERROR] Failed to execute goal org.codehaus.mojo:cobertura-maven-plugin:2.6:instrument (default-cli) on project TestModule: Unable to execute Cobertura. Error while executing process. Cannot run program "/bin/sh": error=7, Argument list too long -> [Help 1]
16:37:31 org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:cobertura-maven-plugin:2.6:instrument (default-cli) on project TestModule: Unable to execute Cobertura.
16:37:31    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:216)
16:37:31    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
16:37:31    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
16:37:31    at org.apache.maven.lifecycle.internal.MojoExecutor.executeForkedExecutions(MojoExecutor.java:364)
16:37:31    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:198)
16:37:31    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
16:37:31    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
16:37:31    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
16:37:31    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
16:37:31    at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
16:37:31    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
16:37:31    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:317)
16:37:31    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152)
16:37:31    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:555)
16:37:31    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
16:37:31    at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
16:37:31    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
16:37:31    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:76)
16:37:31    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
16:37:31    at java.lang.reflect.Method.invoke(Method.java:602)
16:37:31    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
16:37:31    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
16:37:31    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
16:37:31    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
16:37:31 Caused by: org.apache.maven.plugin.MojoExecutionException: Unable to execute Cobertura.
16:37:31    at org.codehaus.mojo.cobertura.tasks.AbstractTask.executeJava(AbstractTask.java:244)
16:37:31    at org.codehaus.mojo.cobertura.tasks.InstrumentTask.execute(InstrumentTask.java:139)
16:37:31    at org.codehaus.mojo.cobertura.CoberturaInstrumentMojo.execute(CoberturaInstrumentMojo.java:162)
16:37:31    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:106)
16:37:31    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
16:37:31    ... 23 more
16:37:31 Caused by: org.codehaus.plexus.util.cli.CommandLineException: Error while executing process.
16:37:31    at org.codehaus.plexus.util.cli.Commandline.execute(Commandline.java:656)
16:37:31    at org.codehaus.plexus.util.cli.CommandLineUtils.executeCommandLine(CommandLineUtils.java:144)
16:37:31    at org.codehaus.plexus.util.cli.CommandLineUtils.executeCommandLine(CommandLineUtils.java:107)
16:37:31    at org.codehaus.mojo.cobertura.tasks.AbstractTask.executeJava(AbstractTask.java:240)
16:37:31    ... 27 more
16:37:31 Caused by: java.io.IOException: Cannot run program "/bin/sh": error=7, Argument list too long
16:37:31    at java.lang.ProcessBuilder.start(ProcessBuilder.java:1042)
16:37:31    at java.lang.Runtime.exec(Runtime.java:615)
16:37:31    at java.lang.Runtime.exec(Runtime.java:526)
16:37:31    at org.codehaus.plexus.util.cli.Commandline.execute(Commandline.java:636)
16:37:31    ... 30 more
16:37:31 Caused by: java.io.IOException: error=7, Argument list too long
16:37:31    at java.lang.UNIXProcess.<init>(UNIXProcess.java:139)
16:37:31    at java.lang.ProcessImpl.start(ProcessImpl.java:152)
16:37:31    at java.lang.ProcessBuilder.start(ProcessBuilder.java:1023)
16:37:31    ... 33 more

在我的Windows机器上构建成功但在jenkins上失败了.当我将cobertura版本降级到2.5.1时,这个错误消失了,但我得到了一些解析异常,因为cobertura for 2.5.1的解析器与java语法不是最新的.

有人可以帮助我让这个适用于2.6.0版及更高版本的cobertura

Answer 1

所有 shell 都对命令行长度有限制。UNIX//Linux系统BSD对可用于命令行参数和环境变量的字节数有限制。

当您启动新进程或键入命令时，将应用这些限制，并且您将在屏幕上看到如下错误消息：

Argument list too long

Cobertura 正在尝试执行 shell 命令：

getLog().debug( "Working Directory: " + cl.getWorkingDirectory() );
getLog().debug( "Executing command line:" );
getLog().debug( cl.toString() );

int exitCode;
try
{
    exitCode = CommandLineUtils.executeCommandLine( cl, stdout, stderr );
}
catch ( CommandLineException e )
{
    throw new MojoExecutionException( "Unable to execute Cobertura.", e );
}

事实上，该插件正在尝试执行一个java进程来运行cobertura：

 Commandline cl = new Commandline();
 File java = new File( SystemUtils.getJavaHome(), "bin/java" );
 cl.setExecutable( java.getAbsolutePath() );
 cl.addEnvironment("CLASSPATH", createClasspath());

 String log4jConfig = getLog4jConfigFile();
 if ( log4jConfig != null )
 {
     cl.createArg().setValue( "-Dlog4j.configuration=" + log4jConfig );
 }

 cl.createArg().setValue( "-Xmx" + maxmem );

 cl.createArg().setValue( taskClass );

 if ( cmdLineArgs.useCommandsFile() )
 {
     String commandsFile;
     try
     {
          commandsFile = cmdLineArgs.getCommandsFile();
     }
     catch ( IOException e )
     {
           throw new MojoExecutionException( "Unable to obtain CommandsFile location.", e );
     }
     if ( FileUtils.fileExists( commandsFile ) ) 
     {
            cl.createArg().setValue( "--commandsfile" );
            cl.createArg().setValue( commandsFile );
      }
      else 
      {
             throw new MojoExecutionException( "CommandsFile doesn't exist: "  + commandsFile );
      }
 }
 else
 {
      Iterator<String> it = cmdLineArgs.iterator();
      while ( it.hasNext() )
      {
          cl.createArg().setValue( it.next() );
      }
 }

因此，首先，启用 cobertura DEBUG 跟踪来显示执行的 shell 命令。

我认为问题在于 2.6 版本中使用的类路径与 2.5.1 版本中使用的类路径。

请启用调试跟踪并发布结果：

https://wiki.jenkins-ci.org/display/JENKINS/Logging