Arquillian integration test code coverage issue with Jacoco - code-coverage

Question

I am doing integration testing using arquillian and tomee remote plugin. it is working good. But my code coverage is not working. I am using Jacoco plugin for code coverage. Getting Exception in my Java class java.lang.instrument.IllegalClassFormatException: Error while instrumenting com/demo/EmpService
How to do code coverage in remote container using Jacoco ?
Note: I have passed javaagent ( argLine ) to server catalina opts in integration phase. I am injecting my bean in test class and trying to cover test cases. Test case is passed. But no code coverage and getting exception
EmpService:
import javax.enterprise.context.ApplicationScoped;
#ApplicationScoped
public class EmpService {
public String getName(String name) {
System.out.println(" I am here ###################### "+name);
String s = "Fine";
if(name.startsWith("s")) {
s = "Welcome";
}
return s;
}
}
EmpSericeIT.java
public class EmpServiceIT extends Arquillian {
#Inject
private EmpService empService;
#Deployment
public static WebArchive createDeployment() throws IOException {
WebArchive webArchive = ShrinkWrap.create(WebArchive.class, "test.war")
.addClass(EmpService.class)
.addAsWebInfResource(EmptyAsset.INSTANCE, "beans.xml");
System.out.println(webArchive.toString(true));
return webArchive;
}
#Test
public void testService() {
assertNotNull(empService);
assertEquals(empService.getName("K"),"Fine");
assertEquals(empService.getName("s"),"Welcome");
}
}
<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.demo</groupId>
<artifactId>code-coverage</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<failOnMissingWebXml>false</failOnMissingWebXml>
<tomee.version>7.1.0</tomee.version>
<tomee.classifier>plus</tomee.classifier>
<lombok.version>1.16.8</lombok.version>
<arquillian.version>1.4.1.Final</arquillian.version>
<testng.version>6.14.3</testng.version>
<shrinkwrap.resolvers.version>3.1.3</shrinkwrap.resolvers.version>
<plugin.maven.jacoco.version>0.8.2</plugin.maven.jacoco.version>
<plugin.maven-surefire.version>2.19.1</plugin.maven-surefire.version>
<version.plugin.maven.failsafe>2.19.1</version.plugin.maven.failsafe>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.tomee</groupId>
<artifactId>apache-tomee</artifactId>
<classifier>${tomee.classifier}</classifier>
<type>zip</type>
<scope>provided</scope>
<version>${tomee.version}</version>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-jdk14</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.jboss.arquillian.testng</groupId>
<artifactId>arquillian-testng-container</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jboss.arquillian.config</groupId>
<artifactId>arquillian-config-api</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jboss.arquillian.extension</groupId>
<artifactId>arquillian-jacoco</artifactId>
<version>1.0.0.Alpha10</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jacoco</groupId>
<artifactId>org.jacoco.core</artifactId>
<version>${plugin.maven.jacoco.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jboss.shrinkwrap.resolver</groupId>
<artifactId>shrinkwrap-resolver-depchain</artifactId>
<version>${shrinkwrap.resolvers.version}</version>
<scope>test</scope>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>${testng.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.tomee</groupId>
<artifactId>arquillian-tomee-remote</artifactId>
<version>${tomee.version}</version>
<scope>test</scope>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
<exclusion>
<groupId>org.apache.myfaces.core</groupId>
<artifactId>myfaces-api</artifactId>
</exclusion>
<exclusion>
<groupId>org.apache.myfaces.core</groupId>
<artifactId>myfaces-impl</artifactId>
</exclusion>
<exclusion>
<groupId>org.apache.tomee</groupId>
<artifactId>tomee-myfaces</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.tomee</groupId>
<artifactId>openejb-cxf-rs</artifactId>
<version>${tomee.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>${plugin.maven.jacoco.version}</version>
<configuration>
<includes>
</includes>
</configuration>
<executions>
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>default-prepare-agent-integration</id>
<goals>
<goal>prepare-agent-integration</goal>
</goals>
<configuration>
<destFile>${project.build.directory}/jacoco-it.exec</destFile>
</configuration>
</execution>
<execution>
<id>Create Unit Test Report</id>
<phase>prepare-package</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
<execution>
<id>Create Integration Test Report</id>
<goals>
<goal>report-integration</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${plugin.maven-surefire.version}</version>
<configuration>
<skip>true</skip>
<skipTests>true</skipTests>
<failIfNoTests>false</failIfNoTests>
<excludes>
<exclude>**/*IT.java</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<version>${version.plugin.maven.failsafe}</version>
<configuration>
<!--
<includes>
<include>**/*Test.java</include>
</includes>
-->
<systemPropertyVariables>
<tomee.classifier>${tomee.classifier}</tomee.classifier>
<tomee.version>${tomee.version}</tomee.version>
<tomee.httpPort>-1</tomee.httpPort>
<tomee.stopPort>-1</tomee.stopPort>
<tomee.ajpPort>-1</tomee.ajpPort>
<tomee.dir>target/apache-tomee-remote</tomee.dir>
<tomee.appWorkingDir>target/arquillian-test-working-dir</tomee.appWorkingDir>
<tomee.cleanOnStartUp>true</tomee.cleanOnStartUp>
<tomee.catalina_opts>-Xmx550m -XX:MaxPermSize=200m ${argLine}</tomee.catalina_opts>
<!--<tomee.javaVmArguments>-Xmx1024m ${surefireArgLine} -Dsimple=XYZ</tomee.javaVmArguments>-->
<tomee.properties>
tomee.jpa.cdi=false
LOG_TO_CONSOLE=true
</tomee.properties>
</systemPropertyVariables>
<!--
<argLine> </argLine>
<suiteXmlFiles>
<suiteXmlFile>${project.basedir}/src/test/resources/testng.xml</suiteXmlFile>
</suiteXmlFiles>
-->
</configuration>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.jboss.arquillian</groupId>
<artifactId>arquillian-bom</artifactId>
<version>${arquillian.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
Exception
java.lang.instrument.IllegalClassFormatException: Error while instrumenting com/demo/EmpService.
at org.jacoco.agent.rt.internal_28bab1d.CoverageTransformer.transform(CoverageTransformer.java:93)
at sun.instrument.TransformerManager.transform(TransformerManager.java:188)
at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:428)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2339)
at org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:829)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1278)
at org.apache.tomee.catalina.TomEEWebappClassLoader.loadClass(TomEEWebappClassLoader.java:208)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1137)
at org.apache.openejb.cdi.CdiScanner.load(CdiScanner.java:321)
at org.apache.openejb.cdi.CdiScanner.handleBda(CdiScanner.java:255)
at org.apache.openejb.cdi.CdiScanner.init(CdiScanner.java:148)
at org.apache.openejb.cdi.OpenEJBLifecycle.startApplication(OpenEJBLifecycle.java:179)
at org.apache.openejb.cdi.ThreadSingletonServiceImpl.initialize(ThreadSingletonServiceImpl.java:189)
at org.apache.openejb.cdi.CdiBuilder.build(CdiBuilder.java:41)
at org.apache.openejb.assembler.classic.Assembler.createApplication(Assembler.java:963)
at org.apache.openejb.assembler.classic.Assembler.createApplication(Assembler.java:757)
at org.apache.tomee.catalina.TomcatWebAppBuilder.startInternal(TomcatWebAppBuilder.java:1303)
at org.apache.tomee.catalina.TomcatWebAppBuilder.configureStart(TomcatWebAppBuilder.java:1125)
at org.apache.tomee.catalina.GlobalListenerSupport.lifecycleEvent(GlobalListenerSupport.java:133)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5154)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.tomee.catalina.TomcatWebAppBuilder.deployWar(TomcatWebAppBuilder.java:652)
at org.apache.tomee.catalina.TomcatWebAppBuilder.deployWebApps(TomcatWebAppBuilder.java:592)
at org.apache.tomee.catalina.deployment.TomcatWebappDeployer.deploy(TomcatWebappDeployer.java:47)
at org.apache.openejb.assembler.DeployerEjb.deploy(DeployerEjb.java:177)
at org.apache.openejb.assembler.DeployerEjb.deploy(DeployerEjb.java:140)
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.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:205)
at org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:186)
at org.apache.openejb.security.internal.InternalSecurityInterceptor.invoke(InternalSecurityInterceptor.java:35)
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.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:205)
at org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:186)
at org.apache.openejb.monitoring.StatsInterceptor.record(StatsInterceptor.java:191)
at org.apache.openejb.monitoring.StatsInterceptor.invoke(StatsInterceptor.java:102)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:205)
at org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:186)
at org.apache.openejb.core.interceptor.InterceptorStack.invoke(InterceptorStack.java:85)
at org.apache.openejb.core.singleton.SingletonContainer._invoke(SingletonContainer.java:272)
at org.apache.openejb.core.singleton.SingletonContainer.invoke(SingletonContainer.java:221)
at org.apache.openejb.server.ejbd.EjbRequestHandler.doEjbObject_BUSINESS_METHOD(EjbRequestHandler.java:371)
at org.apache.openejb.server.ejbd.EjbRequestHandler.processRequest(EjbRequestHandler.java:182)
at org.apache.openejb.server.ejbd.EjbDaemon.processEjbRequest(EjbDaemon.java:360)
at org.apache.openejb.server.ejbd.EjbDaemon.service(EjbDaemon.java:247)
at org.apache.openejb.server.ejbd.EjbServer.service(EjbServer.java:104)
at org.apache.openejb.server.httpd.ServerServlet.service(ServerServlet.java:60)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:44)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.tomee.catalina.OpenEJBSecurityListener$RequestCapturer.invoke(OpenEJBSecurityListener.java:97)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:800)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1471)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Error while instrumenting com/demo/EmpService.
at org.jacoco.agent.rt.internal_28bab1d.core.instr.Instrumenter.instrumentError(Instrumenter.java:175)
at org.jacoco.agent.rt.internal_28bab1d.core.instr.Instrumenter.instrument(Instrumenter.java:125)
at org.jacoco.agent.rt.internal_28bab1d.CoverageTransformer.transform(CoverageTransformer.java:91)
... 83 more

Answer 1

I found your solution by asking the JaCoCo dev's (here). It appears to be related to TestNG. If you add the TestNG library to your Arquillian container, your coverage should be fixed. A modified example of yours is shown below.
#Deployment
public static WebArchive createDeployment() throws IOException {
PomEquippedResolveStage pomEquippedResolveStage = Maven.resolver().loadPomFromFile("pom.xml");
File[] externalLibs = pomEquippedResolveStage.resolve(
"org.testng:testng"
).withTransitivity().asFile();
WebArchive webArchive = ShrinkWrap.create(WebArchive.class, "test.war")
.addClass(EmpService.class)
.addAsLibraries(externalLibs)
.addAsWebInfResource(EmptyAsset.INSTANCE, "beans.xml");
System.out.println(webArchive.toString(true));
return webArchive;
}