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Posted to commits@sling.apache.org by Apache Jenkins Server <je...@builds.apache.org> on 2016/11/01 18:37:05 UTC

Jenkins build is still unstable: sling-ide #70

See <https://builds.apache.org/job/sling-ide/changes>


Jenkins build is back to stable : sling-ide #74

Posted by Apache Jenkins Server <je...@builds.apache.org>.
See <https://builds.apache.org/job/sling-ide/74/changes>


Jenkins build is still unstable: sling-ide #73

Posted by Apache Jenkins Server <je...@builds.apache.org>.
See <https://builds.apache.org/job/sling-ide/changes>


Jenkins build is unstable: sling-ide #72

Posted by Apache Jenkins Server <je...@builds.apache.org>.
See <https://builds.apache.org/job/sling-ide/72/changes>


Re: Build failed in Jenkins: sling-ide #71

Posted by Robert Munteanu <ro...@apache.org>.
On Wed, 2016-11-02 at 15:21 +0000, Apache Jenkins Server wrote:
> Caused by: java.lang.UnsupportedClassVersionError:
> org/eclipse/tycho/core/maven/TychoMavenLifecycleParticipant :
> Unsupported major.minor version 52.0
> 	at java.lang.ClassLoader.defineClass1(Native Method)
> 	at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
> 	at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:14
> 2)
> 	at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
> 	at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
> 	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
> 	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
> 	at
> org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(Cl
> assRealm.java:401)
> 	at
> org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(
> SelfFirstStrategy.java:42)
> 	at
> org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadCl
> ass(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)
> 	at
> org.eclipse.sisu.space.URLClassSpace.loadClass(URLClassSpace.java:139
> )
> 	... 49 more
> 

Hmmm, I was a bit eager in upgrading the Tycho version. Still running
on Java 7, so reverted the changes in r1767706 .

Robert

Build failed in Jenkins: sling-ide #71

Posted by Apache Jenkins Server <je...@builds.apache.org>.
See <https://builds.apache.org/job/sling-ide/71/changes>

Changes:

[rombert] SLING-6231 - Sightly SWTBot tests are unstable 

Remove hardcoded 1000 ms sleep in the Sightly tests. Instead, poll until
the project is visible.

[rombert] SLING-6231 - Sightly SWTBot tests are unstable 

SightlyAutocompletionTest - once we get the package explorer view use a
specific SWTBot instance for it, rather than the global one. This seems
to increase stability for me - no failures in 5 test runs ( mvn clean
verify ).

[rombert] SLING-6112 - Make Sling IDE independent of m2e-tycho 

Create a test validating that a legacy Maven bundle project has the
correct error marker attached.

[rombert] SLING-6112 - Make Sling IDE independent of m2e-tycho 

Create a MavenProjectAdapter in eclipse-m2e-test to make it easier to
test Maven projects.

[rombert] SLING-6112 - Make Sling IDE independent of m2e-tycho 

eclipse-test: allow eclipse-m2e-test to import the helpers package

[rombert] SLING-6112 - Make Sling IDE independent of m2e-tycho 

Move DefaultJavaVMInstall to the 'helpers' package.

[rombert] Update to Tycho 0.26.0

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[INFO] Downloading: https://repo.maven.apache.org/maven2/org/eclipse/tycho/org.eclipse.tycho.p2.tools.shared/0.26.0/org.eclipse.tycho.p2.tools.shared-0.26.0.pom
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[INFO] Downloading: http://repository.jboss.org/nexus/content/groups/public/org/eclipse/tycho/org.eclipse.tycho.p2.tools.shared/0.26.0/org.eclipse.tycho.p2.tools.shared-0.26.0.jar
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[INFO] Downloading: https://repo.maven.apache.org/maven2/org/eclipse/tycho/org.eclipse.tycho.embedder.shared/0.26.0/org.eclipse.tycho.embedder.shared-0.26.0.jar
[INFO] Downloaded: https://repo.maven.apache.org/maven2/org/eclipse/tycho/org.eclipse.tycho.embedder.shared/0.26.0/org.eclipse.tycho.embedder.shared-0.26.0.jar (10 KB at 74.3 KB/sec)
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/eclipse/tycho/org.eclipse.tycho.core.shared/0.26.0/org.eclipse.tycho.core.shared-0.26.0.jar
[INFO] Downloaded: https://repo.maven.apache.org/maven2/org/eclipse/tycho/sisu-equinox-embedder/0.26.0/sisu-equinox-embedder-0.26.0.jar (13 KB at 88.5 KB/sec)
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/eclipse/tycho/tycho-p2-facade/0.26.0/tycho-p2-facade-0.26.0.jar
[INFO] Downloaded: https://repo.maven.apache.org/maven2/org/eclipse/tycho/org.eclipse.tycho.core.shared/0.26.0/org.eclipse.tycho.core.shared-0.26.0.jar (37 KB at 235.5 KB/sec)
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/eclipse/tycho/org.eclipse.tycho.p2.resolver.shared/0.26.0/org.eclipse.tycho.p2.resolver.shared-0.26.0.jar
[INFO] Downloaded: https://repo.maven.apache.org/maven2/org/eclipse/tycho/tycho-p2-facade/0.26.0/tycho-p2-facade-0.26.0.jar (34 KB at 196.1 KB/sec)
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/eclipse/tycho/org.eclipse.tycho.p2.tools.shared/0.26.0/org.eclipse.tycho.p2.tools.shared-0.26.0.jar
[INFO] Downloaded: https://repo.maven.apache.org/maven2/org/eclipse/tycho/tycho-metadata-model/0.26.0/tycho-metadata-model-0.26.0.jar (36 KB at 177.8 KB/sec)
[INFO] Downloaded: https://repo.maven.apache.org/maven2/org/eclipse/tycho/tycho-embedder-api/0.26.0/tycho-embedder-api-0.26.0.jar (7 KB at 33.5 KB/sec)
[INFO] Downloaded: https://repo.maven.apache.org/maven2/org/eclipse/tycho/org.eclipse.tycho.p2.tools.shared/0.26.0/org.eclipse.tycho.p2.tools.shared-0.26.0.jar (21 KB at 82.4 KB/sec)
[INFO] Downloaded: https://repo.maven.apache.org/maven2/org/eclipse/tycho/org.eclipse.tycho.p2.resolver.shared/0.26.0/org.eclipse.tycho.p2.resolver.shared-0.26.0.jar (27 KB at 102.4 KB/sec)
[INFO] Downloaded: https://repo.maven.apache.org/maven2/org/eclipse/tycho/org.eclipse.osgi/3.11.0.v20160603-1336/org.eclipse.osgi-3.11.0.v20160603-1336.jar (1352 KB at 3643.7 KB/sec)
[WARNING] Error injecting: org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant
java.lang.TypeNotPresentException: Type org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant not present
	at org.eclipse.sisu.space.URLClassSpace.loadClass(URLClassSpace.java:147)
	at org.eclipse.sisu.space.NamedClass.load(NamedClass.java:46)
	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.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
	at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103)
	at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
	at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:145)
	at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41)
	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$2.get(InjectorImpl.java:1012)
	at org.eclipse.sisu.inject.LazyBeanEntry.getValue(LazyBeanEntry.java:81)
	at org.eclipse.sisu.plexus.LazyPlexusBean.getValue(LazyPlexusBean.java:51)
	at org.eclipse.sisu.wire.EntryListAdapter$ValueIterator.next(EntryListAdapter.java:111)
	at java.util.AbstractCollection.addAll(AbstractCollection.java:341)
	at org.apache.maven.DefaultMaven.getLifecycleParticipants(DefaultMaven.java:400)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:262)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
	at org.jvnet.hudson.maven3.launcher.Maven32Launcher.main(Maven32Launcher.java:132)
	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:606)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchStandard(Launcher.java:330)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:238)
	at jenkins.maven3.agent.Maven32Main.launch(Maven32Main.java:186)
	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:606)
	at hudson.maven.Maven3Builder.call(Maven3Builder.java:136)
	at hudson.maven.Maven3Builder.call(Maven3Builder.java:71)
	at hudson.remoting.UserRequest.perform(UserRequest.java:153)
	at hudson.remoting.UserRequest.perform(UserRequest.java:50)
	at hudson.remoting.Request$2.run(Request.java:332)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.UnsupportedClassVersionError: org/eclipse/tycho/core/maven/TychoMavenLifecycleParticipant : Unsupported major.minor version 52.0
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(ClassRealm.java:401)
	at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:42)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
	at org.eclipse.sisu.space.URLClassSpace.loadClass(URLClassSpace.java:139)
	... 49 more
[ERROR] Internal error: com.google.inject.ProvisionException: Unable to provision, see the following errors:
[ERROR] 
[ERROR] 1) Error in custom provider, java.lang.TypeNotPresentException: Type org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant not present
[ERROR] at ClassRealm[extension>org.eclipse.tycho:tycho-maven-plugin:0.26.0, parent: sun.misc.Launcher$AppClassLoader@6d69c9a2] (via modules: org.eclipse.sisu.wire.WireModule -> org.eclipse.sisu.plexus.PlexusBindingModule)
[ERROR] at ClassRealm[extension>org.eclipse.tycho:tycho-maven-plugin:0.26.0, parent: sun.misc.Launcher$AppClassLoader@6d69c9a2] (via modules: org.eclipse.sisu.wire.WireModule -> org.eclipse.sisu.plexus.PlexusBindingModule)
[ERROR] while locating org.apache.maven.AbstractMavenLifecycleParticipant annotated with @com.google.inject.name.Named(value=TychoMavenLifecycleListener)
[ERROR] 
[ERROR] 1 error: org/eclipse/tycho/core/maven/TychoMavenLifecycleParticipant : Unsupported major.minor version 52.0
[ERROR] -> [Help 1]
org.apache.maven.InternalErrorException: Internal error: com.google.inject.ProvisionException: Unable to provision, see the following errors:

1) Error in custom provider, java.lang.TypeNotPresentException: Type org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant not present
  at ClassRealm[extension>org.eclipse.tycho:tycho-maven-plugin:0.26.0, parent: sun.misc.Launcher$AppClassLoader@6d69c9a2] (via modules: org.eclipse.sisu.wire.WireModule -> org.eclipse.sisu.plexus.PlexusBindingModule)
  at ClassRealm[extension>org.eclipse.tycho:tycho-maven-plugin:0.26.0, parent: sun.misc.Launcher$AppClassLoader@6d69c9a2] (via modules: org.eclipse.sisu.wire.WireModule -> org.eclipse.sisu.plexus.PlexusBindingModule)
  while locating org.apache.maven.AbstractMavenLifecycleParticipant annotated with @com.google.inject.name.Named(value=TychoMavenLifecycleListener)

1 error
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:121)
	at org.jvnet.hudson.maven3.launcher.Maven32Launcher.main(Maven32Launcher.java:132)
	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:606)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchStandard(Launcher.java:330)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:238)
	at jenkins.maven3.agent.Maven32Main.launch(Maven32Main.java:186)
	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:606)
	at hudson.maven.Maven3Builder.call(Maven3Builder.java:136)
	at hudson.maven.Maven3Builder.call(Maven3Builder.java:71)
	at hudson.remoting.UserRequest.perform(UserRequest.java:153)
	at hudson.remoting.UserRequest.perform(UserRequest.java:50)
	at hudson.remoting.Request$2.run(Request.java:332)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Caused by: com.google.inject.ProvisionException: Unable to provision, see the following errors:

1) Error in custom provider, java.lang.TypeNotPresentException: Type org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant not present
  at ClassRealm[extension>org.eclipse.tycho:tycho-maven-plugin:0.26.0, parent: sun.misc.Launcher$AppClassLoader@6d69c9a2] (via modules: org.eclipse.sisu.wire.WireModule -> org.eclipse.sisu.plexus.PlexusBindingModule)
  at ClassRealm[extension>org.eclipse.tycho:tycho-maven-plugin:0.26.0, parent: sun.misc.Launcher$AppClassLoader@6d69c9a2] (via modules: org.eclipse.sisu.wire.WireModule -> org.eclipse.sisu.plexus.PlexusBindingModule)
  while locating org.apache.maven.AbstractMavenLifecycleParticipant annotated with @com.google.inject.name.Named(value=TychoMavenLifecycleListener)

1 error
	at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1025)
	at org.eclipse.sisu.inject.LazyBeanEntry.getValue(LazyBeanEntry.java:81)
	at org.eclipse.sisu.plexus.LazyPlexusBean.getValue(LazyPlexusBean.java:51)
	at org.eclipse.sisu.wire.EntryListAdapter$ValueIterator.next(EntryListAdapter.java:111)
	at java.util.AbstractCollection.addAll(AbstractCollection.java:341)
	at org.apache.maven.DefaultMaven.getLifecycleParticipants(DefaultMaven.java:400)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:262)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
	... 22 more
Caused by: java.lang.TypeNotPresentException: Type org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant not present
	at org.eclipse.sisu.space.URLClassSpace.loadClass(URLClassSpace.java:147)
	at org.eclipse.sisu.space.NamedClass.load(NamedClass.java:46)
	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.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
	at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103)
	at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
	at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:145)
	at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41)
	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)
	... 30 more
Caused by: java.lang.UnsupportedClassVersionError: org/eclipse/tycho/core/maven/TychoMavenLifecycleParticipant : Unsupported major.minor version 52.0
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(ClassRealm.java:401)
	at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:42)
	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)
	at org.eclipse.sisu.space.URLClassSpace.loadClass(URLClassSpace.java:139)
	... 49 more
[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/InternalErrorException
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