Checkstyle can not find org.codehaus.plexus.personality.plexus.lifecycle.phase.ServiceLocator

Checkstyle had no issues with the same config in beta-2. Upgrading to beta-3 breaks checkstyle with the following stacktrace...

Number of foreign imports: 4
import: Entry[import org.codehaus.plexus.util.xml.pull.XmlSerializer from realm ClassRealm[plexus.co
re, parent: null]]
import: Entry[import org.codehaus.plexus.util.xml.pull.XmlPullParserException from realm ClassRealm[
plexus.core, parent: null]]
import: Entry[import org.codehaus.plexus.util.xml.pull.XmlPullParser from realm ClassRealm[plexus.co
re, parent: null]]
import: Entry[import org.codehaus.plexus.util.xml.Xpp3Dom from realm ClassRealm[plexus.core, parent:
null]]

realm = maven.api
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
Number of foreign imports: 21
import: Entry[import org.sonatype.aether from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import org.codehaus.plexus.personality from realm ClassRealm[plexus.core, parent: null
]]
import: Entry[import org.codehaus.plexus.logging from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import org.codehaus.plexus.lifecycle from realm ClassRealm[plexus.core, parent: null]]

import: Entry[import org.codehaus.plexus.context from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import org.codehaus.plexus.container from realm ClassRealm[plexus.core, parent: null]]

import: Entry[import org.codehaus.plexus.configuration from realm ClassRealm[plexus.core, parent: nu
ll]]
import: Entry[import org.codehaus.plexus.component from realm ClassRealm[plexus.core, parent: null]]

import: Entry[import org.codehaus.plexus.classworlds from realm ClassRealm[plexus.core, parent: null
]]
import: Entry[import org.codehaus.plexus.PlexusContainerException from realm ClassRealm[plexus.core,
parent: null]]
import: Entry[import org.codehaus.plexus.PlexusContainer from realm ClassRealm[plexus.core, parent:
null]]
import: Entry[import org.codehaus.plexus.PlexusConstants from realm ClassRealm[plexus.core, parent:
null]]
import: Entry[import org.codehaus.plexus.MutablePlexusContainer from realm ClassRealm[plexus.core, p
arent: null]]
import: Entry[import org.codehaus.plexus.DuplicateChildContainerException from realm ClassRealm[plex
us.core, parent: null]]
import: Entry[import org.codehaus.plexus.DefaultPlexusContainer from realm ClassRealm[plexus.core, p
arent: null]]
import: Entry[import org.codehaus.plexus.DefaultContainerConfiguration from realm ClassRealm[plexus.
core, parent: null]]
import: Entry[import org.codehaus.plexus.DefaultComponentRegistry from realm ClassRealm[plexus.core,
parent: null]]
import: Entry[import org.codehaus.plexus.ContainerConfiguration from realm ClassRealm[plexus.core, p
arent: null]]
import: Entry[import org.codehaus.plexus.ComponentRegistry from realm ClassRealm[plexus.core, parent
: null]]
import: Entry[import org.codehaus.classworlds from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import org.apache.maven from realm ClassRealm[plexus.core, parent: null]]

-----------------------------------------------------

at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getConfiguredMojo(DefaultMaven
PluginManager.java:412)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.j
ava:96)
... 20 more
Caused by: java.lang.NoClassDefFoundError: Lorg/codehaus/plexus/personality/plexus/lifecycle/phase/S
erviceLocator;
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Class.java:2259)
at java.lang.Class.getDeclaredFields(Class.java:1715)
at com.google.inject.spi.InjectionPoint.getInjectionPoints(InjectionPoint.java:649)
at com.google.inject.spi.InjectionPoint.forInstanceMethodsAndFields(InjectionPoint.java:356)

at com.google.inject.internal.ConstructorBindingImpl.getInternalDependencies(ConstructorBind
ingImpl.java:151)
at com.google.inject.internal.InjectorImpl.getInternalDependencies(InjectorImpl.java:559)
at com.google.inject.internal.InjectorImpl.cleanup(InjectorImpl.java:517)
at com.google.inject.internal.InjectorImpl.initializeJitBinding(InjectorImpl.java:503)
at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:812)
at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.jav
a:744)
at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:233)
at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:184)
at com.google.inject.internal.InjectorImpl.getInternalFactory(InjectorImpl.java:818)
at com.google.inject.internal.InjectorImpl.getProviderOrThrow(InjectorImpl.java:932)
at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:965)
at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:926)
at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:978)
at org.sonatype.guice.bean.reflect.AbstractDeferredClass.get(AbstractDeferredClass.java:48)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProvider
Adapter.java:40)
at com.google.inject.internal.InjectorImpl$4$1.call(InjectorImpl.java:943)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:989)
at com.google.inject.internal.InjectorImpl$4.get(InjectorImpl.java:939)
at com.google.inject.Scopes$1$1.get(Scopes.java:63)
at org.sonatype.guice.bean.locators.QualifiedBean.getValue(QualifiedBean.java:85)
at org.sonatype.guice.plexus.locators.LazyPlexusBean.getValue(LazyPlexusBean.java:55)
at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:234)
at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:226)
at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getConfiguredMojo(DefaultMaven
PluginManager.java:393)
... 21 more
[ERROR]
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following arti
cles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginContainerException