Running a Maven Webdriver Testng test on Jenkins, unidentifiable error

Question

Having written some tests in Java using Eclipse IDE, we want to make them run automatically after deploy. I got to the point of having just configured Maven to almost work with Jenkins, but there are some more problems. Here is one of them: Im trying to run a headless text (xvfb, firefox) ion jenkins, but here is the output: (I cant even identify what the problem is here)

<===[JENKINS REMOTING CAPACITY]===>channel started

log4j:WARN No appenders could be found for logger (org.apache.commons.beanutils.converters.BooleanConverter).
log4j:WARN Please initialize the log4j system properly.

Executing Maven:  -B -f /mnt/www/jenkins/jobs/Integration Tests 2/workspace/pom.xml install

java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:616)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchStandard(Launcher.java:331)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:239)
    at org.jvnet.hudson.maven3.agent.Maven3Main.launch(Maven3Main.java:174)
    at hudson.maven.Maven3Builder.call(Maven3Builder.java:100)
    at hudson.maven.Maven3Builder.call(Maven3Builder.java:66)
    at hudson.remoting.UserRequest.perform(UserRequest.java:118)
    at hudson.remoting.UserRequest.perform(UserRequest.java:48)
    at hudson.remoting.Request$2.run(Request.java:326)
    at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:679)
Caused by: java.lang.NoClassDefFoundError: org/apache/maven/cli/MavenLoggerManager
    at org.jvnet.hudson.maven3.launcher.Maven3Launcher.main(Maven3Launcher.java:73)
    ... 18 more
Caused by: java.lang.ClassNotFoundException: org.apache.maven.cli.MavenLoggerManager
    at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230)
    ... 19 more
channel stopped
ERROR: Failed to parse POMs
hudson.util.IOException2: java.lang.reflect.InvocationTargetException
    at hudson.maven.Maven3Builder.call(Maven3Builder.java:162)
    at hudson.maven.Maven3Builder.call(Maven3Builder.java:66)
    at hudson.remoting.UserRequest.perform(UserRequest.java:118)
    at hudson.remoting.UserRequest.perform(UserRequest.java:48)
    at hudson.remoting.Request$2.run(Request.java:326)
    at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:679)
Caused by: java.lang.Exception: java.lang.reflect.InvocationTargetException
    at org.jvnet.hudson.maven3.agent.Maven3Main.launch(Maven3Main.java:177)
    at hudson.maven.Maven3Builder.call(Maven3Builder.java:100)
    ... 10 more
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:616)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchStandard(Launcher.java:331)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:239)
    at org.jvnet.hudson.maven3.agent.Maven3Main.launch(Maven3Main.java:174)
    ... 11 more
Caused by: java.lang.NoClassDefFoundError: org/apache/maven/cli/MavenLoggerManager
    at org.jvnet.hudson.maven3.launcher.Maven3Launcher.main(Maven3Launcher.java:73)
    ... 18 more
Caused by: java.lang.ClassNotFoundException: org.apache.maven.cli.MavenLoggerManager
    at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230)
    ... 19 more
Finished: FAILURE

and this is my pom.xml file:

<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.pragmaticqa.tests</groupId>
  <artifactId>functionalTests</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>
  <name>functionalTests</name>
  <url>http://maven.apache.org</url>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>
  <dependencies>
    <dependency>
        <groupId>org.seleniumhq.selenium</groupId>
        <artifactId>selenium-firefox-driver</artifactId>
        <version>2.32.0</version>
    </dependency>  
    <dependency>
          <groupId>org.testng</groupId>
          <artifactId>testng</artifactId>
          <version>6.8</version>
          <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>net.sf.opencsv</groupId>
        <artifactId>opencsv</artifactId>
        <version>2.0</version>
    </dependency>
  </dependencies>
  <build>
  <plugins>
    <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>selenium-maven-plugin</artifactId>
        <version>2.3</version>
        <executions>
            <execution>
                <id>xvfb</id>
                <phase>pre-integration-test</phase>
                <goals>
                    <goal>xvfb</goal>
                </goals>
            </execution>
            <execution>
                <id>selenium</id>
                <phase>pre-integration-test</phase>
                <goals>
                    <goal>start-server</goal>
                </goals>
                <configuration>
                    <background>true</background>
                </configuration>
            </execution>
        </executions>
    </plugin>
   </plugins>
   </build>
</project>

Answer 1

Looking at the exception trace, you are missing some classes as you are getting ClassNotFoundException and hence InvocationTargetException. There are a couple of things you can try if you haven't already.

1. Upgrade your maven
2. Configure Jenkins to use the correct Maven install

You can probably find answer here. Hope that helps