Problem: mvn site : java.lang.NoClassDefFoundError

I created a simple Spark App for Maven tutorial. To create documentation, I used

mvn site

But it failed and ended up getting the following error.

[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building spark-api-example 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-site-plugin:3.3:site (default-cli) @ spark-api-example ---
[WARNING] Report plugin org.apache.maven.plugins:maven-project-info-reports-plugin has an empty version.
[WARNING]
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING]
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[INFO] configuring report plugin org.apache.maven.plugins:maven-project-info-reports-plugin:3.0.0
[WARNING] Error injecting: org.apache.maven.report.projectinfo.CiManagementReport
java.lang.NoClassDefFoundError: org/apache/maven/doxia/siterenderer/DocumentContent
	at java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
	at java.lang.Class.getDeclaredConstructors(Class.java:2020)
	at com.google.inject.spi.InjectionPoint.forConstructorOf(InjectionPoint.java:245)
	at com.google.inject.internal.ConstructorBindingImpl.create(ConstructorBindingImpl.java:99)
	at com.google.inject.internal.InjectorImpl.createUninitializedBinding(InjectorImpl.java:658)
	at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:882)
	at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:805)
	at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:282)
	at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:214)
	at com.google.inject.internal.InjectorImpl.getProviderOrThrow(InjectorImpl.java:1006)
	at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:1038)
	at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:1001)
	at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1051)
	at org.eclipse.sisu.space.AbstractDeferredClass.get(AbstractDeferredClass.java:48)
	at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81)
	at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:53)
	at com.google.inject.internal.ProviderInternalFactory$1.call(ProviderInternalFactory.java:65)
	at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:115)
	at org.eclipse.sisu.bean.BeanScheduler$Activator.onProvision(BeanScheduler.java:176)
	at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:126)
	at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:68)
	at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:63)
	at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45)
	at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1016)
	at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092)
	at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1012)
	at org.eclipse.sisu.inject.Guice4$1.get(Guice4.java:162)
	at org.eclipse.sisu.inject.LazyBeanEntry.getValue(LazyBeanEntry.java:81)
	at org.eclipse.sisu.plexus.LazyPlexusBean.getValue(LazyPlexusBean.java:51)
	at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:263)
	at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:255)
	at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getConfiguredMojo(DefaultMavenPluginManager.java:517)
	at org.apache.maven.reporting.exec.DefaultMavenReportExecutor.getConfiguredMavenReport(DefaultMavenReportExecutor.java:306)
	at org.apache.maven.reporting.exec.DefaultMavenReportExecutor.buildReportPlugin(DefaultMavenReportExecutor.java:263)
	at org.apache.maven.reporting.exec.DefaultMavenReportExecutor.buildMavenReports(DefaultMavenReportExecutor.java:154)
	at org.apache.maven.plugins.site.AbstractSiteRenderingMojo.getReports(AbstractSiteRenderingMojo.java:235)
	at org.apache.maven.plugins.site.SiteMojo.execute(SiteMojo.java:121)
	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: java.lang.ClassNotFoundException: org.apache.maven.doxia.siterenderer.DocumentContent
	at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
	... 60 more
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE

Solution

You need to update the mvn-site-plugin and maven-project-info-reports-plugin in your pom.xml, under <build>. You can find the latest version on GitHub, Maven-site-plugin/releases, maven-project-info-reports-plugin/releases.

  <build>
    <plugins>
      <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-site-plugin</artifactId>
          <version>3.8.2</version>
      </plugin>

      <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-project-info-reports-plugin</artifactId>
          <version>3.0.0</version>
      </plugin>
      
    </plugins>
  </build>

Now, mvn site will be successful. Please let me know in the comments below if you encounter any issues. Check out the Master Maven tutorial.

By |Last Updated: August 3rd, 2019|Categories: Maven|

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