title: Maven Compiler Plugin 3.x:
body: <p>I have a maven problem right now. I created a new test project to simplify the problem:</p>
  
  <p>The error seams to be:</p>
  
  <pre><code>    Caused by: java.lang.ClassNotFoundException: org.codehaus.plexus.util.cli.CommandLineException
      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)
      ... 59 more
  </code></pre>
  
  <p>-v gives me:</p>
  
  <p>Apache Maven 3.0.4 (r1232337; 2012-01-17 09:44:56+0100)
  Maven home: /home/ubuntu/workspaces/projectx/test/EMBEDDED
  Java version: 1.7.0_21, vendor: Oracle Corporation
  Java home: /usr/lib/jvm/java-7-openjdk/jre
  Default locale: de_DE, platform encoding: UTF-8
  OS name: "linux", version: "3.0.0-32-generic", arch: "amd64", family: "unix"</p>
  
  <p>And the pom is:</p>
  
  <pre><code>    &lt;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"&gt;
    &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
    &lt;groupId&gt;test&lt;/groupId&gt;
    &lt;artifactId&gt;test&lt;/artifactId&gt;
    &lt;version&gt;0.0.1-SNAPSHOT&lt;/version&gt;
  
    &lt;build&gt;
          &lt;plugins&gt;
            &lt;plugin&gt;
              &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
              &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt;
              &lt;version&gt;3.0&lt;/version&gt;
              &lt;configuration&gt;
                &lt;source&gt;1.7&lt;/source&gt;
                &lt;target&gt;1.7&lt;/target&gt;
              &lt;/configuration&gt;
            &lt;/plugin&gt;
          &lt;/plugins&gt;
        &lt;/build&gt;
  &lt;/project&gt;
  </code></pre>
  
  <p>This gives me:</p>
  
  <pre><code>    [INFO] Scanning for projects...
  [INFO]                                                                         
  [INFO] ------------------------------------------------------------------------
  [INFO] Building test 0.0.1-SNAPSHOT
  [INFO] ------------------------------------------------------------------------
  [INFO] 
  [INFO] --- maven-resources-plugin:2.5:resources (default-resources) @ test ---
  [debug] execute contextualize
  [WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
  [INFO] Copying 0 resource
  [INFO] 
  [INFO] --- maven-compiler-plugin:3.0:compile (default-compile) @ test ---
  [INFO] ------------------------------------------------------------------------
  [INFO] BUILD FAILURE
  [INFO] ------------------------------------------------------------------------
  [INFO] Total time: 2.170s
  [INFO] Finished at: Wed Nov 06 22:21:53 CET 2013
  [INFO] Final Memory: 6M/115M
  [INFO] ------------------------------------------------------------------------
  [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile (default-compile) on project test: Execution default-compile of goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile failed: A required class was missing while executing org.apache.maven.plugins:maven-compiler-plugin:3.0:compile: org/codehaus/plexus/util/cli/CommandLineException
  [ERROR] -----------------------------------------------------
  [ERROR] realm =    plugin&gt;org.apache.maven.plugins:maven-compiler-plugin:3.0
  [ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
  [ERROR] urls[0] = file:/home/username/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/3.0/maven-compiler-plugin-3.0.jar
  [ERROR] urls[1] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar
  [ERROR] urls[2] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.1/maven-shared-utils-0.1.jar
  [ERROR] urls[3] = file:/home/username/.m2/repository/com/google/code/findbugs/jsr305/2.0.1/jsr305-2.0.1.jar
  [ERROR] urls[4] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-incremental/1.0/maven-shared-incremental-1.0.jar
  [ERROR] urls[5] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
  [ERROR] urls[6] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-api/2.0/plexus-compiler-api-2.0.jar
  [ERROR] urls[7] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-manager/2.0/plexus-compiler-manager-2.0.jar
  [ERROR] urls[8] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-javac/2.0/plexus-compiler-javac-2.0.jar
  [ERROR] urls[9] = file:/home/username/.m2/repository/org/apache/xbean/xbean-reflect/3.4/xbean-reflect-3.4.jar
  [ERROR] urls[10] = file:/home/username/.m2/repository/log4j/log4j/1.2.12/log4j-1.2.12.jar
  [ERROR] urls[11] = file:/home/username/.m2/repository/commons-logging/commons-logging-api/1.1/commons-logging-api-1.1.jar
  [ERROR] urls[12] = file:/home/username/.m2/repository/com/google/collections/google-collections/1.0/google-collections-1.0.jar
  [ERROR] urls[13] = file:/home/username/.m2/repository/junit/junit/3.8.2/junit-3.8.2.jar
  [ERROR] Number of foreign imports: 1
  [ERROR] import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
  [ERROR] 
  [ERROR] -----------------------------------------------------: org.codehaus.plexus.util.cli.CommandLineException
  [ERROR] -&gt; [Help 1]
  [ERROR] 
  [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
  [ERROR] Re-run Maven using the -X switch to enable full debug logging.
  [ERROR] 
  [ERROR] For more information about the errors and possible solutions, please read the following articles:
  [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginContainerException
  </code></pre>
  
  <p>using -X adds:</p>
  
  <pre><code>    Apache Maven 3.0.4 (r1232337; 2012-01-17 09:44:56+0100)
  Maven home: /home/username/workspaces/projectX43/test/EMBEDDED
  Java version: 1.7.0_21, vendor: Oracle Corporation
  Java home: /usr/lib/jvm/java-7-openjdk/jre
  Default locale: de_DE, platform encoding: UTF-8
  OS name: "linux", version: "3.0.0-32-generic", arch: "amd64", family: "unix"
  SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
  SLF4J: Defaulting to no-operation (NOP) logger implementation
  SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
  [INFO] Error stacktraces are turned on.
  [DEBUG] Reading global settings from EMBEDDED/conf/settings.xml
  [DEBUG] Reading user settings from /home/username/.m2/settings.xml
  [DEBUG] Using local repository at /home/username/.m2/repository
  [DEBUG] Using manager EnhancedLocalRepositoryManager with priority 10 for /home/username/.m2/repository
  [INFO] Scanning for projects...
  
  [..... (Limit of 30000 would be exceeded so I left it out) .....]
  
  [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile (default-compile) on project test: Execution default-compile of goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile failed: A required class was missing while executing org.apache.maven.plugins:maven-compiler-plugin:3.0:compile: org/codehaus/plexus/util/cli/CommandLineException
  [ERROR] -----------------------------------------------------
  [ERROR] realm =    plugin&gt;org.apache.maven.plugins:maven-compiler-plugin:3.0
  [ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
  [ERROR] urls[0] = file:/home/username/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/3.0/maven-compiler-plugin-3.0.jar
  [ERROR] urls[1] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar
  [ERROR] urls[2] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.1/maven-shared-utils-0.1.jar
  [ERROR] urls[3] = file:/home/username/.m2/repository/com/google/code/findbugs/jsr305/2.0.1/jsr305-2.0.1.jar
  [ERROR] urls[4] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-incremental/1.0/maven-shared-incremental-1.0.jar
  [ERROR] urls[5] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
  [ERROR] urls[6] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-api/2.0/plexus-compiler-api-2.0.jar
  [ERROR] urls[7] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-manager/2.0/plexus-compiler-manager-2.0.jar
  [ERROR] urls[8] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-javac/2.0/plexus-compiler-javac-2.0.jar
  [ERROR] urls[9] = file:/home/username/.m2/repository/org/apache/xbean/xbean-reflect/3.4/xbean-reflect-3.4.jar
  [ERROR] urls[10] = file:/home/username/.m2/repository/log4j/log4j/1.2.12/log4j-1.2.12.jar
  [ERROR] urls[11] = file:/home/username/.m2/repository/commons-logging/commons-logging-api/1.1/commons-logging-api-1.1.jar
  [ERROR] urls[12] = file:/home/username/.m2/repository/com/google/collections/google-collections/1.0/google-collections-1.0.jar
  [ERROR] urls[13] = file:/home/username/.m2/repository/junit/junit/3.8.2/junit-3.8.2.jar
  [ERROR] Number of foreign imports: 1
  [ERROR] import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
  [ERROR] 
  [ERROR] -----------------------------------------------------: org.codehaus.plexus.util.cli.CommandLineException
  [ERROR] -&gt; [Help 1]
  org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile (default-compile) on project test: Execution default-compile of goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile failed: A required class was missing while executing org.apache.maven.plugins:maven-compiler-plugin:3.0:compile: org/codehaus/plexus/util/cli/CommandLineException
  -----------------------------------------------------
  realm =    plugin&gt;org.apache.maven.plugins:maven-compiler-plugin:3.0
  strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
  urls[0] = file:/home/username/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/3.0/maven-compiler-plugin-3.0.jar
  urls[1] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar
  urls[2] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.1/maven-shared-utils-0.1.jar
  urls[3] = file:/home/username/.m2/repository/com/google/code/findbugs/jsr305/2.0.1/jsr305-2.0.1.jar
  urls[4] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-incremental/1.0/maven-shared-incremental-1.0.jar
  urls[5] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
  urls[6] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-api/2.0/plexus-compiler-api-2.0.jar
  urls[7] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-manager/2.0/plexus-compiler-manager-2.0.jar
  urls[8] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-javac/2.0/plexus-compiler-javac-2.0.jar
  urls[9] = file:/home/username/.m2/repository/org/apache/xbean/xbean-reflect/3.4/xbean-reflect-3.4.jar
  urls[10] = file:/home/username/.m2/repository/log4j/log4j/1.2.12/log4j-1.2.12.jar
  urls[11] = file:/home/username/.m2/repository/commons-logging/commons-logging-api/1.1/commons-logging-api-1.1.jar
  urls[12] = file:/home/username/.m2/repository/com/google/collections/google-collections/1.0/google-collections-1.0.jar
  urls[13] = file:/home/username/.m2/repository/junit/junit/3.8.2/junit-3.8.2.jar
  Number of foreign imports: 1
  import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
  
  -----------------------------------------------------
  
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:225)
      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:84)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
      at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
      at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
      at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
      at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
      at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
      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:601)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
      at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
  Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-compile of goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile failed: A required class was missing while executing org.apache.maven.plugins:maven-compiler-plugin:3.0:compile: org/codehaus/plexus/util/cli/CommandLineException
  -----------------------------------------------------
  realm =    plugin&gt;org.apache.maven.plugins:maven-compiler-plugin:3.0
  strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
  urls[0] = file:/home/username/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/3.0/maven-compiler-plugin-3.0.jar
  urls[1] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar
  urls[2] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.1/maven-shared-utils-0.1.jar
  urls[3] = file:/home/username/.m2/repository/com/google/code/findbugs/jsr305/2.0.1/jsr305-2.0.1.jar
  urls[4] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-incremental/1.0/maven-shared-incremental-1.0.jar
  urls[5] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
  urls[6] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-api/2.0/plexus-compiler-api-2.0.jar
  urls[7] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-manager/2.0/plexus-compiler-manager-2.0.jar
  urls[8] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-javac/2.0/plexus-compiler-javac-2.0.jar
  urls[9] = file:/home/username/.m2/repository/org/apache/xbean/xbean-reflect/3.4/xbean-reflect-3.4.jar
  urls[10] = file:/home/username/.m2/repository/log4j/log4j/1.2.12/log4j-1.2.12.jar
  urls[11] = file:/home/username/.m2/repository/commons-logging/commons-logging-api/1.1/commons-logging-api-1.1.jar
  urls[12] = file:/home/username/.m2/repository/com/google/collections/google-collections/1.0/google-collections-1.0.jar
  urls[13] = file:/home/username/.m2/repository/junit/junit/3.8.2/junit-3.8.2.jar
  Number of foreign imports: 1
  import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
  
  -----------------------------------------------------
  
      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:127)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
      ... 19 more
  Caused by: org.apache.maven.plugin.PluginContainerException: A required class was missing while executing org.apache.maven.plugins:maven-compiler-plugin:3.0:compile: org/codehaus/plexus/util/cli/CommandLineException
  -----------------------------------------------------
  realm =    plugin&gt;org.apache.maven.plugins:maven-compiler-plugin:3.0
  strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
  urls[0] = file:/home/username/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/3.0/maven-compiler-plugin-3.0.jar
  urls[1] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar
  urls[2] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.1/maven-shared-utils-0.1.jar
  urls[3] = file:/home/username/.m2/repository/com/google/code/findbugs/jsr305/2.0.1/jsr305-2.0.1.jar
  urls[4] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-incremental/1.0/maven-shared-incremental-1.0.jar
  urls[5] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
  urls[6] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-api/2.0/plexus-compiler-api-2.0.jar
  urls[7] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-manager/2.0/plexus-compiler-manager-2.0.jar
  urls[8] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-javac/2.0/plexus-compiler-javac-2.0.jar
  urls[9] = file:/home/username/.m2/repository/org/apache/xbean/xbean-reflect/3.4/xbean-reflect-3.4.jar
  urls[10] = file:/home/username/.m2/repository/log4j/log4j/1.2.12/log4j-1.2.12.jar
  urls[11] = file:/home/username/.m2/repository/commons-logging/commons-logging-api/1.1/commons-logging-api-1.1.jar
  urls[12] = file:/home/username/.m2/repository/com/google/collections/google-collections/1.0/google-collections-1.0.jar
  urls[13] = file:/home/username/.m2/repository/junit/junit/3.8.2/junit-3.8.2.jar
  Number of foreign imports: 1
  import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
  
  -----------------------------------------------------
  
      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:125)
      ... 20 more
  Caused by: java.lang.NoClassDefFoundError: org/codehaus/plexus/util/cli/CommandLineException
      at java.lang.Class.getDeclaredConstructors0(Native Method)
      at java.lang.Class.privateGetDeclaredConstructors(Class.java:2413)
      at java.lang.Class.getDeclaredConstructors(Class.java:1855)
      at com.google.inject.spi.InjectionPoint.forConstructorOf(InjectionPoint.java:245)
      at com.google.inject.internal.ConstructorBindingImpl.create(ConstructorBindingImpl.java:98)
      at com.google.inject.internal.InjectorImpl.createUninitializedBinding(InjectorImpl.java:629)
      at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:831)
      at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:758)
      at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:255)
      at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:204)
      at com.google.inject.internal.InjectorImpl.getProviderOrThrow(InjectorImpl.java:954)
      at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:987)
      at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:950)
      at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1000)
      at org.sonatype.guice.bean.reflect.AbstractDeferredClass.get(AbstractDeferredClass.java:45)
      at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:84)
      at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:52)
      at com.google.inject.internal.ProviderInternalFactory$1.call(ProviderInternalFactory.java:70)
      at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:100)
      at org.sonatype.guice.plexus.lifecycles.PlexusLifecycleManager.onProvision(PlexusLifecycleManager.java:138)
      at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:108)
      at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:55)
      at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:68)
      at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45)
      at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
      at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1018)
      at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
      at com.google.inject.Scopes$1$1.get(Scopes.java:59)
      at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41)
      at com.google.inject.internal.InjectorImpl$3$1.call(InjectorImpl.java:965)
      at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1011)
      at com.google.inject.internal.InjectorImpl$3.get(InjectorImpl.java:961)
      at org.sonatype.guice.bean.locators.LazyBeanEntry.getValue(LazyBeanEntry.java:83)
      at org.sonatype.guice.plexus.locators.LazyPlexusBean.getValue(LazyPlexusBean.java:49)
      at java.util.AbstractMap.get(AbstractMap.java:182)
      at org.codehaus.plexus.compiler.manager.DefaultCompilerManager.getCompiler(DefaultCompilerManager.java:54)
      at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:384)
      at org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.java:118)
      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
      ... 20 more
  Caused by: java.lang.ClassNotFoundException: org.codehaus.plexus.util.cli.CommandLineException
      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)
      ... 59 more
  [ERROR] 
  [ERROR] 
  [ERROR] For more information about the errors and possible solutions, please read the following articles:
  [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginContainerException
  </code></pre>
  
  <p>Thanks for the help.</p>