Java.lang.IllegalStateException: Failed to parse JaCoCo XML report: jacoco.exec

Question

I am trying to publish my coverage report generated by Jacoco plugin - jacoco.exec. But I get the below exception with the mentioned sonar and Jacoco configuration.

SonarCube version 6.7.7

[ERROR] Coverage report 'jacoco.exec' could not be read/imported. Error: {}
java.lang.IllegalStateException: Failed to parse JaCoCo XML report: jacoco.exec
    at org.sonar.plugins.jacoco.XmlReportParser.parse(XmlReportParser.java:96)
    at org.sonar.plugins.jacoco.JacocoSensor.importReport(JacocoSensor.java:73)
    at org.sonar.plugins.jacoco.JacocoSensor.importReports(JacocoSensor.java:64)
    at org.sonar.plugins.jacoco.JacocoSensor.execute(JacocoSensor.java:48)
    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:177)
    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:291)
    at org.sonar.scanner.scan.ProjectScanContainer.scanRecursively(ProjectScanContainer.java:286)
    at org.sonar.scanner.scan.ProjectScanContainer.doAfterStart(ProjectScanContainer.java:264)
    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 sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.sonarsource.scanner.api.internal.IsolatedLauncherProxy.invoke(IsolatedLauncherProxy.java:60)
    at com.sun.proxy.$Proxy24.execute(Unknown Source)
    at org.sonarsource.scanner.api.EmbeddedScanner.doExecute(EmbeddedScanner.java:189)
    at org.sonarsource.scanner.api.EmbeddedScanner.execute(EmbeddedScanner.java:138)
    at org.sonarsource.scanner.maven.bootstrap.ScannerBootstrapper.execute(ScannerBootstrapper.java:65)
    at org.sonarsource.scanner.maven.SonarQubeMojo.execute(SonarQubeMojo.java:104)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
    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:116)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: javax.xml.stream.XMLStreamException: java.nio.charset.MalformedInputException: Input length = 1
    at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.setInputSource(XMLStreamReaderImpl.java:212)
    at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.<init>(XMLStreamReaderImpl.java:184)
    at com.sun.xml.internal.stream.XMLInputFactoryImpl.getXMLStreamReaderImpl(XMLInputFactoryImpl.java:262)
    at com.sun.xml.internal.stream.XMLInputFactoryImpl.createXMLStreamReader(XMLInputFactoryImpl.java:134)
    at org.sonar.plugins.jacoco.XmlReportParser.parse(XmlReportParser.java:46)
    ... 56 common frames omitted
Caused by: java.nio.charset.MalformedInputException: Input length = 1
    at java.nio.charset.CoderResult.throwException(CoderResult.java:281)
    at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:339)
    at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
    at java.io.InputStreamReader.read(InputStreamReader.java:184)
    at java.io.BufferedReader.fill(BufferedReader.java:161)
    at java.io.BufferedReader.read1(BufferedReader.java:212)
    at java.io.BufferedReader.read(BufferedReader.java:286)
    at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.load(XMLEntityScanner.java:1895)
    at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.arrangeCapacity(XMLEntityScanner.java:1761)
    at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.skipString(XMLEntityScanner.java:1829)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$XMLDeclDriver.next(XMLDocumentScannerImpl.java:749)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:602)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:112)
    at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.setInputSource(XMLStreamReaderImpl.java:202)
    ... 60 common frames omitted

Sonar Configuration: Configuration details of sonar plugin mentioned in maven

<sonar.jacoco.reportPath>target/jacoco.exec</sonar.jacoco.reportPath>
<sonar.jacoco.itReportPath>target/jacoco-it.exec</sonar.jacoco.itReportPath>
<sonar.language>java</sonar.language>
<sonar.verbose>true</sonar.verbose>
<sonar.java.source>8</sonar.java.source>

Jacoco Configuration Configuration details of Jacoco plugin mentioned in maven

      <org.jacoco.version>0.8.1</org.jacoco.version>
      <profile>
            <id>sonar-coverage</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
        <build>
            <plugins>
                <plugin>
                    <groupId>org.sonarsource.scanner.maven</groupId>
                    <artifactId>sonar-maven-plugin</artifactId>
                    <version>3.3.0.603</version>
                </plugin>
            </plugins>
        </build>
    </profile>

    <profile>
        <id>jacoco</id>
        <build>
            <plugins>
                <plugin>
                    <groupId>org.jacoco</groupId>
                    <artifactId>jacoco-maven-plugin</artifactId>
                    <version>${org.jacoco.version}</version>
                    <configuration>
                        <append>true</append>
                    </configuration>
                    <executions>
                        <execution>
                            <id>agent-for-unit-test</id>
                            <goals>
                                <goal>prepare-agent</goal>
                            </goals>
                        </execution>
                        <execution>
                            <id>agent-for-integration-test</id>
                            <phase>verify</phase>
                            <goals>
                                <goal>prepare-agent-integration</goal>
                            </goals>
                        </execution>
                        <execution>
                            <id>jacoco-site</id>
                            <phase>verify</phase>
                            <goals>
                                <goal>report</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </build>
    </profile>    

Am I missing any configuration in sonar or jacoco?

Answer 1

java.lang.IllegalStateException: Failed to parse JaCoCo XML report: jacoco.exec
...
Caused by: javax.xml.stream.XMLStreamException: java.nio.charset.MalformedInputException: Input length = 1

The error indicates that unsupported character is found when parsing XML, and the file is jacoco.exec. It is because jacoco.exec is binary, not xml.

In addition Sonar has deprecated the support of jacoco.exec.
I suggest you to follow coverage-test-data-importing-jacoco-coverage-report-in-xml-format. From the link above:

By default the generated report will be saved under target/site/jacoco/jacoco.xml; this location will be checked automatically by the sonar-jacoco plugin so no further configuration is required. Just launch mvn sonar:sonar as usual and the report will be picked up.