我在项目中编写了几个单元测试用例。在声纳仪表板上，“代码覆盖率”选项卡完全丢失。 对于其他一些项目，声纳仪表板却显示了预期的代码覆盖率。
项目的pom文件如下：
if(object && object.property && object.property.anotherInnerProperty=="value")
then do this
如何启用它？
为与所用Java版本相关的错误添加日志，但无法确定导致该错误的根本原因。如所提供的，pom.xml使用Java 11作为编译器源和编译器目标。
在由于Java版本控制而记录错误的地方添加日志：
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>build-info</goal>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<configuration>
<redirectTestOutputToFile>true</redirectTestOutputToFile>
</configuration>
</plugin>
<plugin>
<groupId>org.sonarsource.scanner.maven</groupId>
<artifactId>sonar-maven-plugin</artifactId>
<version>3.4.0.905</version>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.8.2</version>
<executions>
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>default-report</id>
<phase>prepare-package</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>${start-class}
</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
添加日志以供参考。为每个Java类获取此警告：
Unable to create symbol table for : /home/jenkins/agent/workspace/_checkingBuild/src/main/java/com/test/test2/MyServices/config/AppConfig.java
java.lang.IllegalArgumentException: Unsupported class file major version 55
at org.objectweb.asm.ClassReader.<init>(ClassReader.java:166)
at org.objectweb.asm.ClassReader.<init>(ClassReader.java:148)
at org.objectweb.asm.ClassReader.<init>(ClassReader.java:136)
at org.sonar.java.resolve.BytecodeCompleter.loadClass(BytecodeCompleter.java:242)
at org.sonar.java.resolve.Symbols.<init>(Symbols.java:176)
at org.sonar.java.resolve.SemanticModel.createFor(SemanticModel.java:60)
at org.sonar.java.model.VisitorsBridge.visitFile(VisitorsBridge.java:109)
at org.sonar.java.ast.JavaAstScanner.simpleScan(JavaAstScanner.java:96)
at org.sonar.java.ast.JavaAstScanner.scan(JavaAstScanner.java:68)
at org.sonar.java.JavaSquid.scanSources(JavaSquid.java:116)
at org.sonar.java.JavaSquid.scan(JavaSquid.java:110)
at org.sonar.plugins.java.JavaSquidSensor.execute(JavaSquidSensor.java:93)
at org.sonar.scanner.sensor.SensorWrapper.analyse(SensorWrapper.java:53)
at org.sonar.scanner.phases.SensorsExecutor.executeSensor(SensorsExecutor.java:88)
at org.sonar.scanner.phases.SensorsExecutor.execute(SensorsExecutor.java:82)
at org.sonar.scanner.phases.SensorsExecutor.execute(SensorsExecutor.java:68)
at org.sonar.scanner.phases.AbstractPhaseExecutor.execute(AbstractPhaseExecutor.java:88)
at org.sonar.scanner.scan.ModuleScanContainer.doAfterStart(ModuleScanContainer.java:180)
at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:135)
at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:121)
at org.sonar.scanner.scan.ProjectScanContainer.scan(ProjectScanContainer.java:302)
at org.sonar.scanner.scan.ProjectScanContainer.scanRecursively(ProjectScanContainer.java:297)
at org.sonar.scanner.scan.ProjectScanContainer.doAfterStart(ProjectScanContainer.java:271)
at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:135)
at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:121)
at org.sonar.scanner.task.ScanTask.execute(ScanTask.java:48)
at org.sonar.scanner.task.TaskContainer.doAfterStart(TaskContainer.java:84)
at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:135)
at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:121)
at org.sonar.scanner.bootstrap.GlobalContainer.executeTask(GlobalContainer.java:121)
at org.sonar.batch.bootstrapper.Batch.doExecuteTask(Batch.java:116)
at org.sonar.batch.bootstrapper.Batch.execute(Batch.java:71)
at org.sonarsource.scanner.api.internal.batch.BatchIsolatedLauncher.execute(BatchIsolatedLauncher.java:46)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.sonarsource.scanner.api.internal.IsolatedLauncherProxy.invoke(IsolatedLauncherProxy.java:60)
at com.sun.proxy.$Proxy27.execute(Unknown Source)
at org.sonarsource.scanner.api.EmbeddedScanner.doExecute(EmbeddedScanner.java:171)
at org.sonarsource.scanner.api.EmbeddedScanner.execute(EmbeddedScanner.java:128)
at org.sonarsource.scanner.maven.bootstrap.ScannerBootstrapper.execute(ScannerBootstrapper.java:63)
at org.sonarsource.scanner.maven.SonarQubeMojo.execute(SonarQubeMojo.java:108)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:956)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:192)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)
构建仍然可以成功创建。 另外，从日志中很明显的是Java版本是问题所在。但无法确定是什么原因造成的。
答案 0 :(得分：0)
Unsupported class file major version 55
建议用于构建/运行/测试代码的Java版本有问题。
根据此页面，我认为您可能正在使用过时的jacoco-maven-plugin-> https://www.jacoco.org/jacoco/trunk/doc/changes.html官方Java 11支持始于版本0.8.3。