You have more than one version of 'org.apache.commons.logging.Log' visible,
which is not allowed
------------------------------------------------------------------------------------------------
Key: MOJO-1118
URL: http://jira.codehaus.org/browse/MOJO-1118
Project: Mojo
Issue Type: Bug
Components: dashboard
Environment: Maven version: 2.0.9
Java version: 1.6.0_02
OS name: "linux" version: "2.6.21.7-3.fc8" arch: "i386" Family: "unix"
Reporter: Erik Drolshammer
For all projects I have tried I get the error "Invalid class loader hierarchy.
You have more than one version of 'org.apache.commons.logging.Log' visible,
which is not allowed.". (See full stacktrace at the bottom.)
I get the same error on projects that don't use commons-logging directly, but
there is still a chance that other plugins depend on commons-logging.
The plugin depends on commons-logging version 1.0.4. Could this dependency be
upgraded to 1.1.1?
Version 1.1.1 solves many of the problems people have with commons-logging.
E.g. more dependencies are optional.
Is it anything I can do to fix this error?
(I have tried to lock down commons-logging in dependencyManagement, but that
didn't seem to make any difference.)
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] null
Invalid class loader hierarchy. You have more than one version of
'org.apache.commons.logging.Log' visible, which is not allowed.
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.ExceptionInInitializerError
at
org.codehaus.mojo.dashboard.report.plugin.hibernate.HibernateServiceImpl.initialize(HibernateServiceImpl.java:116)
at
org.codehaus.plexus.personality.plexus.lifecycle.phase.InitializePhase.execute(InitializePhase.java:16)
at
org.codehaus.plexus.lifecycle.AbstractLifecycleHandler.start(AbstractLifecycleHandler.java:101)
at
org.codehaus.plexus.component.manager.AbstractComponentManager.startComponentLifecycle(AbstractComponentManager.java:105)
at
org.codehaus.plexus.component.manager.AbstractComponentManager.createComponentInstance(AbstractComponentManager.java:95)
at
org.codehaus.plexus.component.manager.ClassicSingletonComponentManager.getComponent(ClassicSingletonComponentManager.java:92)
at
org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:331)
at
org.codehaus.plexus.component.composition.FieldComponentComposer.assignRequirementToField(FieldComponentComposer.java:129)
at
org.codehaus.plexus.component.composition.FieldComponentComposer.assembleComponent(FieldComponentComposer.java:73)
at
org.codehaus.plexus.component.composition.DefaultComponentComposerManager.assembleComponent(DefaultComponentComposerManager.java:68)
at
org.codehaus.plexus.DefaultPlexusContainer.composeComponent(DefaultPlexusContainer.java:1486)
at
org.codehaus.plexus.personality.plexus.lifecycle.phase.CompositionPhase.execute(CompositionPhase.java:29)
at
org.codehaus.plexus.lifecycle.AbstractLifecycleHandler.start(AbstractLifecycleHandler.java:101)
at
org.codehaus.plexus.component.manager.AbstractComponentManager.startComponentLifecycle(AbstractComponentManager.java:105)
at
org.codehaus.plexus.component.manager.AbstractComponentManager.createComponentInstance(AbstractComponentManager.java:95)
at
org.codehaus.plexus.component.manager.PerLookupComponentManager.getComponent(PerLookupComponentManager.java:48)
at
org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:331)
at
org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:440)
at
org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:609)
at
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:429)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:558)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:512)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:482)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:330)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:291)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:142)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:287)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.commons.logging.LogConfigurationException:
org.apache.commons.logging.LogConfigurationException:
org.apache.commons.logging.LogConfigurationException: Invalid class loader
hierarchy. You have more than one version of 'org.apache.commons.logging.Log'
visible, which is not allowed. (Caused by
org.apache.commons.logging.LogConfigurationException: Invalid class loader
hierarchy. You have more than one version of 'org.apache.commons.logging.Log'
visible, which is not allowed.) (Caused by
org.apache.commons.logging.LogConfigurationException:
org.apache.commons.logging.LogConfigurationException: Invalid class loader
hierarchy. You have more than one version of 'org.apache.commons.logging.Log'
visible, which is not allowed. (Caused by
org.apache.commons.logging.LogConfigurationException: Invalid class loader
hierarchy. You have more than one version of 'org.apache.commons.logging.Log'
visible, which is not allowed.))
at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:543)
at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235)
at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351)
at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:120)
... 37 more
Caused by: org.apache.commons.logging.LogConfigurationException:
org.apache.commons.logging.LogConfigurationException: Invalid class loader
hierarchy. You have more than one version of 'org.apache.commons.logging.Log'
visible, which is not allowed. (Caused by
org.apache.commons.logging.LogConfigurationException: Invalid class loader
hierarchy. You have more than one version of 'org.apache.commons.logging.Log'
visible, which is not allowed.)
at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:397)
at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529)
... 41 more
Caused by: org.apache.commons.logging.LogConfigurationException: Invalid class
loader hierarchy. You have more than one version of
'org.apache.commons.logging.Log' visible, which is not allowed.
at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:385)
... 42 more
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