[jira] Created: (MCOBERTURA-67) mvn cobertura:cobertura class loader problem

mvn cobertura:cobertura class loader problem
--------------------------------------------

                 Key: MCOBERTURA-67
                 URL: http://jira.codehaus.org/browse/MCOBERTURA-67
             Project: Maven 2.x Cobertura Plugin
          Issue Type: Bug
    Affects Versions: 2.1
         Environment: O/S - Linux
Java Version - 1.5.0_09
Maven version - 2.0.6
            Reporter: D.M.A. Gunawardana


In a multi module project running the mvn -e cobertura:cobertura against the root .pom gives the following error.

--
[INFO] Preparing cobertura:cobertura
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Bad version number in .class file
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.UnsupportedClassVersionError: Bad version number in .class file
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at org.codehaus.classworlds.RealmClassLoader.loadClassDirect(RealmClassLoader.java:195)
        at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:255)
        at org.codehaus.classworlds.RealmClassLoader.loadClass(RealmClassLoader.java:214)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2395)
        at java.lang.Class.privateGetPublicMethods(Class.java:2519)
        at java.lang.Class.getMethods(Class.java:1406)
        at hidden.org.codehaus.plexus.util.ReflectionUtils.getSetter(ReflectionUtils.java:74)
        at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.initSetter(ComponentValueSetter.java:81)
        at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.<init>(ComponentValueSetter.java:62)
        at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:134)
        at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.fromConfiguration(ObjectWithFieldsConverter.java:90)
        at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.configure(ComponentValueSetter.java:247)
        at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:137)
        at org.codehaus.plexus.component.configurator.BasicComponentConfigurator.configureComponent(BasicComponentConfigurator.java:56)
        at org.apache.maven.plugin.DefaultPluginManager.populatePluginFields(DefaultPluginManager.java:1147)
        at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:614)
        at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:421)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:539)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:480)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.forkProjectLifecycle(DefaultLifecycleExecutor.java:896)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.forkLifecycle(DefaultLifecycleExecutor.java:739)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:510)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:493)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:463)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:334)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:125)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
        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:585)
        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)
[INFO] ------------------------------------------------------------------------


Also console output of mvn -e site:site is given below.

-----------------------------------------------------
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error getting reports from the plugin 'org.codehaus.mojo:cobertura-maven-plugin': Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
Bad version number in .class file
[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.lifecycle.LifecycleExecutionException: Error getting reports from the plugin 'org.codehaus.mojo:cobertura-maven-plugin': Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:694)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:642)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:517)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:493)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:463)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:334)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:125)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
        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:585)
        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.maven.plugin.PluginManagerException: Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
        at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:571)
        at org.apache.maven.plugin.DefaultPluginManager.getReport(DefaultPluginManager.java:495)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:683)
        ... 18 more
Caused by: org.codehaus.plexus.component.repository.exception.ComponentLookupException: Unable to lookup component 'org.apache.maven.plugin.Mojoorg.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile', it could not be created
        at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:335)
        at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:440)
        at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:562)
        ... 20 more
Caused by: org.codehaus.plexus.component.factory.ComponentInstantiationException: Could not instanciate component: role: 'null', implementation: 'org.codehaus.mojo.cobertura.CoberturaDatafileDumpMojo'
        at org.codehaus.plexus.component.factory.java.JavaComponentFactory.makeException(JavaComponentFactory.java:77)
        at org.codehaus.plexus.component.factory.java.JavaComponentFactory.newInstance(JavaComponentFactory.java:62)
        at org.codehaus.plexus.DefaultPlexusContainer.createComponentInstance(DefaultPlexusContainer.java:1464)
        at org.codehaus.plexus.component.manager.AbstractComponentManager.createComponentInstance(AbstractComponentManager.java:93)
        at org.codehaus.plexus.component.manager.PerLookupComponentManager.getComponent(PerLookupComponentManager.java:48)
        at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:331)
        ... 22 more
Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class file
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at org.codehaus.classworlds.RealmClassLoader.loadClassDirect(RealmClassLoader.java:195)
        at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:255)
        at org.codehaus.classworlds.RealmClassLoader.loadClass(RealmClassLoader.java:214)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Class.java:2357)
        at java.lang.Class.getConstructor0(Class.java:2671)
        at java.lang.Class.newInstance0(Class.java:321)
        at java.lang.Class.newInstance(Class.java:303)
        at org.codehaus.plexus.component.factory.java.JavaComponentFactory.newInstance(JavaComponentFactory.java:44)
        ... 26 more


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Elifarley Callado Coelho commented on MCOBERTURA-67:
----------------------------------------------------

What's the output of 'mvn -version'  ?

> mvn cobertura:cobertura class loader problem
> --------------------------------------------
>
>                 Key: MCOBERTURA-67
>                 URL: http://jira.codehaus.org/browse/MCOBERTURA-67
>             Project: Maven 2.x Cobertura Plugin
>          Issue Type: Bug
>    Affects Versions: 2.1
>         Environment: O/S - Linux
> Java Version - 1.5.0_09
> Maven version - 2.0.6
>            Reporter: D.M.A. Gunawardana
>
> In a multi module project running the mvn -e cobertura:cobertura against the root .pom gives the following error.
> --
> [INFO] Preparing cobertura:cobertura
> [INFO] ------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO] ------------------------------------------------------------------------
> [INFO] Bad version number in .class file
> [INFO] ------------------------------------------------------------------------
> [INFO] Trace
> java.lang.UnsupportedClassVersionError: Bad version number in .class file
>         at java.lang.ClassLoader.defineClass1(Native Method)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
>         at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
>         at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
>         at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>         at org.codehaus.classworlds.RealmClassLoader.loadClassDirect(RealmClassLoader.java:195)
>         at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:255)
>         at org.codehaus.classworlds.RealmClassLoader.loadClass(RealmClassLoader.java:214)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>         at java.lang.Class.getDeclaredMethods0(Native Method)
>         at java.lang.Class.privateGetDeclaredMethods(Class.java:2395)
>         at java.lang.Class.privateGetPublicMethods(Class.java:2519)
>         at java.lang.Class.getMethods(Class.java:1406)
>         at hidden.org.codehaus.plexus.util.ReflectionUtils.getSetter(ReflectionUtils.java:74)
>         at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.initSetter(ComponentValueSetter.java:81)
>         at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.<init>(ComponentValueSetter.java:62)
>         at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:134)
>         at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.fromConfiguration(ObjectWithFieldsConverter.java:90)
>         at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.configure(ComponentValueSetter.java:247)
>         at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:137)
>         at org.codehaus.plexus.component.configurator.BasicComponentConfigurator.configureComponent(BasicComponentConfigurator.java:56)
>         at org.apache.maven.plugin.DefaultPluginManager.populatePluginFields(DefaultPluginManager.java:1147)
>         at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:614)
>         at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:421)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:539)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:480)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.forkProjectLifecycle(DefaultLifecycleExecutor.java:896)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.forkLifecycle(DefaultLifecycleExecutor.java:739)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:510)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:493)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:463)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:334)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:125)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
>         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:585)
>         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)
> [INFO] ------------------------------------------------------------------------
> Also console output of mvn -e site:site is given below.
> -----------------------------------------------------
> [INFO] ------------------------------------------------------------------------
> [ERROR] BUILD ERROR
> [INFO] ------------------------------------------------------------------------
> [INFO] Error getting reports from the plugin 'org.codehaus.mojo:cobertura-maven-plugin': Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
> Bad version number in .class file
> [INFO] ------------------------------------------------------------------------
> [INFO] Trace
> org.apache.maven.lifecycle.LifecycleExecutionException: Error getting reports from the plugin 'org.codehaus.mojo:cobertura-maven-plugin': Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:694)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:642)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:517)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:493)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:463)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:334)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:125)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
>         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:585)
>         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.maven.plugin.PluginManagerException: Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
>         at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:571)
>         at org.apache.maven.plugin.DefaultPluginManager.getReport(DefaultPluginManager.java:495)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:683)
>         ... 18 more
> Caused by: org.codehaus.plexus.component.repository.exception.ComponentLookupException: Unable to lookup component 'org.apache.maven.plugin.Mojoorg.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile', it could not be created
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:335)
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:440)
>         at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:562)
>         ... 20 more
> Caused by: org.codehaus.plexus.component.factory.ComponentInstantiationException: Could not instanciate component: role: 'null', implementation: 'org.codehaus.mojo.cobertura.CoberturaDatafileDumpMojo'
>         at org.codehaus.plexus.component.factory.java.JavaComponentFactory.makeException(JavaComponentFactory.java:77)
>         at org.codehaus.plexus.component.factory.java.JavaComponentFactory.newInstance(JavaComponentFactory.java:62)
>         at org.codehaus.plexus.DefaultPlexusContainer.createComponentInstance(DefaultPlexusContainer.java:1464)
>         at org.codehaus.plexus.component.manager.AbstractComponentManager.createComponentInstance(AbstractComponentManager.java:93)
>         at org.codehaus.plexus.component.manager.PerLookupComponentManager.getComponent(PerLookupComponentManager.java:48)
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:331)
>         ... 22 more
> Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class file
>         at java.lang.ClassLoader.defineClass1(Native Method)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
>         at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
>         at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
>         at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>         at org.codehaus.classworlds.RealmClassLoader.loadClassDirect(RealmClassLoader.java:195)
>         at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:255)
>         at org.codehaus.classworlds.RealmClassLoader.loadClass(RealmClassLoader.java:214)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>         at java.lang.Class.getDeclaredConstructors0(Native Method)
>         at java.lang.Class.privateGetDeclaredConstructors(Class.java:2357)
>         at java.lang.Class.getConstructor0(Class.java:2671)
>         at java.lang.Class.newInstance0(Class.java:321)
>         at java.lang.Class.newInstance(Class.java:303)
>         at org.codehaus.plexus.component.factory.java.JavaComponentFactory.newInstance(JavaComponentFactory.java:44)
>         ... 26 more

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elifarley edited comment on MCOBERTURA-67 at 4/8/08 4:03 PM:
----------------------------------------------------------------------------

Your Java version is '1.5.0_09', but does this match the output of 'mvn -version'  ?

      was (Author: elifarley):
    What's the output of 'mvn -version'  ?
 

> mvn cobertura:cobertura class loader problem
> --------------------------------------------
>
>                 Key: MCOBERTURA-67
>                 URL: http://jira.codehaus.org/browse/MCOBERTURA-67
>             Project: Maven 2.x Cobertura Plugin
>          Issue Type: Bug
>    Affects Versions: 2.1
>         Environment: O/S - Linux
> Java Version - 1.5.0_09
> Maven version - 2.0.6
>            Reporter: D.M.A. Gunawardana
>
> In a multi module project running the mvn -e cobertura:cobertura against the root .pom gives the following error.
> --
> [INFO] Preparing cobertura:cobertura
> [INFO] ------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO] ------------------------------------------------------------------------
> [INFO] Bad version number in .class file
> [INFO] ------------------------------------------------------------------------
> [INFO] Trace
> java.lang.UnsupportedClassVersionError: Bad version number in .class file
>         at java.lang.ClassLoader.defineClass1(Native Method)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
>         at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
>         at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
>         at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>         at org.codehaus.classworlds.RealmClassLoader.loadClassDirect(RealmClassLoader.java:195)
>         at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:255)
>         at org.codehaus.classworlds.RealmClassLoader.loadClass(RealmClassLoader.java:214)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>         at java.lang.Class.getDeclaredMethods0(Native Method)
>         at java.lang.Class.privateGetDeclaredMethods(Class.java:2395)
>         at java.lang.Class.privateGetPublicMethods(Class.java:2519)
>         at java.lang.Class.getMethods(Class.java:1406)
>         at hidden.org.codehaus.plexus.util.ReflectionUtils.getSetter(ReflectionUtils.java:74)
>         at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.initSetter(ComponentValueSetter.java:81)
>         at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.<init>(ComponentValueSetter.java:62)
>         at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:134)
>         at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.fromConfiguration(ObjectWithFieldsConverter.java:90)
>         at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.configure(ComponentValueSetter.java:247)
>         at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:137)
>         at org.codehaus.plexus.component.configurator.BasicComponentConfigurator.configureComponent(BasicComponentConfigurator.java:56)
>         at org.apache.maven.plugin.DefaultPluginManager.populatePluginFields(DefaultPluginManager.java:1147)
>         at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:614)
>         at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:421)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:539)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:480)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.forkProjectLifecycle(DefaultLifecycleExecutor.java:896)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.forkLifecycle(DefaultLifecycleExecutor.java:739)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:510)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:493)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:463)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:334)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:125)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
>         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:585)
>         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)
> [INFO] ------------------------------------------------------------------------
> Also console output of mvn -e site:site is given below.
> -----------------------------------------------------
> [INFO] ------------------------------------------------------------------------
> [ERROR] BUILD ERROR
> [INFO] ------------------------------------------------------------------------
> [INFO] Error getting reports from the plugin 'org.codehaus.mojo:cobertura-maven-plugin': Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
> Bad version number in .class file
> [INFO] ------------------------------------------------------------------------
> [INFO] Trace
> org.apache.maven.lifecycle.LifecycleExecutionException: Error getting reports from the plugin 'org.codehaus.mojo:cobertura-maven-plugin': Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:694)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:642)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:517)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:493)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:463)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:334)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:125)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
>         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:585)
>         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.maven.plugin.PluginManagerException: Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
>         at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:571)
>         at org.apache.maven.plugin.DefaultPluginManager.getReport(DefaultPluginManager.java:495)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:683)
>         ... 18 more
> Caused by: org.codehaus.plexus.component.repository.exception.ComponentLookupException: Unable to lookup component 'org.apache.maven.plugin.Mojoorg.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile', it could not be created
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:335)
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:440)
>         at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:562)
>         ... 20 more
> Caused by: org.codehaus.plexus.component.factory.ComponentInstantiationException: Could not instanciate component: role: 'null', implementation: 'org.codehaus.mojo.cobertura.CoberturaDatafileDumpMojo'
>         at org.codehaus.plexus.component.factory.java.JavaComponentFactory.makeException(JavaComponentFactory.java:77)
>         at org.codehaus.plexus.component.factory.java.JavaComponentFactory.newInstance(JavaComponentFactory.java:62)
>         at org.codehaus.plexus.DefaultPlexusContainer.createComponentInstance(DefaultPlexusContainer.java:1464)
>         at org.codehaus.plexus.component.manager.AbstractComponentManager.createComponentInstance(AbstractComponentManager.java:93)
>         at org.codehaus.plexus.component.manager.PerLookupComponentManager.getComponent(PerLookupComponentManager.java:48)
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:331)
>         ... 22 more
> Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class file
>         at java.lang.ClassLoader.defineClass1(Native Method)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
>         at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
>         at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
>         at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>         at org.codehaus.classworlds.RealmClassLoader.loadClassDirect(RealmClassLoader.java:195)
>         at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:255)
>         at org.codehaus.classworlds.RealmClassLoader.loadClass(RealmClassLoader.java:214)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>         at java.lang.Class.getDeclaredConstructors0(Native Method)
>         at java.lang.Class.privateGetDeclaredConstructors(Class.java:2357)
>         at java.lang.Class.getConstructor0(Class.java:2671)
>         at java.lang.Class.newInstance0(Class.java:321)
>         at java.lang.Class.newInstance(Class.java:303)
>         at org.codehaus.plexus.component.factory.java.JavaComponentFactory.newInstance(JavaComponentFactory.java:44)
>         ... 26 more

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David J. M. Karlsen commented on MCOBERTURA-67:
-----------------------------------------------

I suspect this to be a duplicate of http://jira.codehaus.org/browse/MCOBERTURA-49

> mvn cobertura:cobertura class loader problem
> --------------------------------------------
>
>                 Key: MCOBERTURA-67
>                 URL: http://jira.codehaus.org/browse/MCOBERTURA-67
>             Project: Maven 2.x Cobertura Plugin
>          Issue Type: Bug
>    Affects Versions: 2.1
>         Environment: O/S - Linux
> Java Version - 1.5.0_09
> Maven version - 2.0.6
>            Reporter: D.M.A. Gunawardana
>             Fix For: 2.4
>
>
> In a multi module project running the mvn -e cobertura:cobertura against the root .pom gives the following error.
> --
> [INFO] Preparing cobertura:cobertura
> [INFO] ------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO] ------------------------------------------------------------------------
> [INFO] Bad version number in .class file
> [INFO] ------------------------------------------------------------------------
> [INFO] Trace
> java.lang.UnsupportedClassVersionError: Bad version number in .class file
>         at java.lang.ClassLoader.defineClass1(Native Method)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
>         at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
>         at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
>         at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>         at org.codehaus.classworlds.RealmClassLoader.loadClassDirect(RealmClassLoader.java:195)
>         at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:255)
>         at org.codehaus.classworlds.RealmClassLoader.loadClass(RealmClassLoader.java:214)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>         at java.lang.Class.getDeclaredMethods0(Native Method)
>         at java.lang.Class.privateGetDeclaredMethods(Class.java:2395)
>         at java.lang.Class.privateGetPublicMethods(Class.java:2519)
>         at java.lang.Class.getMethods(Class.java:1406)
>         at hidden.org.codehaus.plexus.util.ReflectionUtils.getSetter(ReflectionUtils.java:74)
>         at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.initSetter(ComponentValueSetter.java:81)
>         at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.<init>(ComponentValueSetter.java:62)
>         at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:134)
>         at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.fromConfiguration(ObjectWithFieldsConverter.java:90)
>         at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.configure(ComponentValueSetter.java:247)
>         at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:137)
>         at org.codehaus.plexus.component.configurator.BasicComponentConfigurator.configureComponent(BasicComponentConfigurator.java:56)
>         at org.apache.maven.plugin.DefaultPluginManager.populatePluginFields(DefaultPluginManager.java:1147)
>         at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:614)
>         at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:421)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:539)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:480)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.forkProjectLifecycle(DefaultLifecycleExecutor.java:896)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.forkLifecycle(DefaultLifecycleExecutor.java:739)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:510)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:493)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:463)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:334)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:125)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
>         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:585)
>         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)
> [INFO] ------------------------------------------------------------------------
> Also console output of mvn -e site:site is given below.
> -----------------------------------------------------
> [INFO] ------------------------------------------------------------------------
> [ERROR] BUILD ERROR
> [INFO] ------------------------------------------------------------------------
> [INFO] Error getting reports from the plugin 'org.codehaus.mojo:cobertura-maven-plugin': Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
> Bad version number in .class file
> [INFO] ------------------------------------------------------------------------
> [INFO] Trace
> org.apache.maven.lifecycle.LifecycleExecutionException: Error getting reports from the plugin 'org.codehaus.mojo:cobertura-maven-plugin': Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:694)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:642)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:517)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:493)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:463)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:334)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:125)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
>         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:585)
>         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.maven.plugin.PluginManagerException: Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
>         at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:571)
>         at org.apache.maven.plugin.DefaultPluginManager.getReport(DefaultPluginManager.java:495)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:683)
>         ... 18 more
> Caused by: org.codehaus.plexus.component.repository.exception.ComponentLookupException: Unable to lookup component 'org.apache.maven.plugin.Mojoorg.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile', it could not be created
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:335)
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:440)
>         at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:562)
>         ... 20 more
> Caused by: org.codehaus.plexus.component.factory.ComponentInstantiationException: Could not instanciate component: role: 'null', implementation: 'org.codehaus.mojo.cobertura.CoberturaDatafileDumpMojo'
>         at org.codehaus.plexus.component.factory.java.JavaComponentFactory.makeException(JavaComponentFactory.java:77)
>         at org.codehaus.plexus.component.factory.java.JavaComponentFactory.newInstance(JavaComponentFactory.java:62)
>         at org.codehaus.plexus.DefaultPlexusContainer.createComponentInstance(DefaultPlexusContainer.java:1464)
>         at org.codehaus.plexus.component.manager.AbstractComponentManager.createComponentInstance(AbstractComponentManager.java:93)
>         at org.codehaus.plexus.component.manager.PerLookupComponentManager.getComponent(PerLookupComponentManager.java:48)
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:331)
>         ... 22 more
> Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class file
>         at java.lang.ClassLoader.defineClass1(Native Method)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
>         at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
>         at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
>         at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>         at org.codehaus.classworlds.RealmClassLoader.loadClassDirect(RealmClassLoader.java:195)
>         at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:255)
>         at org.codehaus.classworlds.RealmClassLoader.loadClass(RealmClassLoader.java:214)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>         at java.lang.Class.getDeclaredConstructors0(Native Method)
>         at java.lang.Class.privateGetDeclaredConstructors(Class.java:2357)
>         at java.lang.Class.getConstructor0(Class.java:2671)
>         at java.lang.Class.newInstance0(Class.java:321)
>         at java.lang.Class.newInstance(Class.java:303)
>         at org.codehaus.plexus.component.factory.java.JavaComponentFactory.newInstance(JavaComponentFactory.java:44)
>         ... 26 more

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     [ http://jira.codehaus.org/browse/MCOBERTURA-67?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David J. M. Karlsen closed MCOBERTURA-67.
-----------------------------------------

       Resolution: Duplicate
    Fix Version/s: 2.4

> mvn cobertura:cobertura class loader problem
> --------------------------------------------
>
>                 Key: MCOBERTURA-67
>                 URL: http://jira.codehaus.org/browse/MCOBERTURA-67
>             Project: Maven 2.x Cobertura Plugin
>          Issue Type: Bug
>    Affects Versions: 2.1
>         Environment: O/S - Linux
> Java Version - 1.5.0_09
> Maven version - 2.0.6
>            Reporter: D.M.A. Gunawardana
>             Fix For: 2.4
>
>
> In a multi module project running the mvn -e cobertura:cobertura against the root .pom gives the following error.
> --
> [INFO] Preparing cobertura:cobertura
> [INFO] ------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO] ------------------------------------------------------------------------
> [INFO] Bad version number in .class file
> [INFO] ------------------------------------------------------------------------
> [INFO] Trace
> java.lang.UnsupportedClassVersionError: Bad version number in .class file
>         at java.lang.ClassLoader.defineClass1(Native Method)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
>         at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
>         at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
>         at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>         at org.codehaus.classworlds.RealmClassLoader.loadClassDirect(RealmClassLoader.java:195)
>         at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:255)
>         at org.codehaus.classworlds.RealmClassLoader.loadClass(RealmClassLoader.java:214)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>         at java.lang.Class.getDeclaredMethods0(Native Method)
>         at java.lang.Class.privateGetDeclaredMethods(Class.java:2395)
>         at java.lang.Class.privateGetPublicMethods(Class.java:2519)
>         at java.lang.Class.getMethods(Class.java:1406)
>         at hidden.org.codehaus.plexus.util.ReflectionUtils.getSetter(ReflectionUtils.java:74)
>         at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.initSetter(ComponentValueSetter.java:81)
>         at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.<init>(ComponentValueSetter.java:62)
>         at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:134)
>         at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.fromConfiguration(ObjectWithFieldsConverter.java:90)
>         at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.configure(ComponentValueSetter.java:247)
>         at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:137)
>         at org.codehaus.plexus.component.configurator.BasicComponentConfigurator.configureComponent(BasicComponentConfigurator.java:56)
>         at org.apache.maven.plugin.DefaultPluginManager.populatePluginFields(DefaultPluginManager.java:1147)
>         at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:614)
>         at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:421)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:539)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:480)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.forkProjectLifecycle(DefaultLifecycleExecutor.java:896)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.forkLifecycle(DefaultLifecycleExecutor.java:739)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:510)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:493)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:463)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:334)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:125)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
>         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:585)
>         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)
> [INFO] ------------------------------------------------------------------------
> Also console output of mvn -e site:site is given below.
> -----------------------------------------------------
> [INFO] ------------------------------------------------------------------------
> [ERROR] BUILD ERROR
> [INFO] ------------------------------------------------------------------------
> [INFO] Error getting reports from the plugin 'org.codehaus.mojo:cobertura-maven-plugin': Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
> Bad version number in .class file
> [INFO] ------------------------------------------------------------------------
> [INFO] Trace
> org.apache.maven.lifecycle.LifecycleExecutionException: Error getting reports from the plugin 'org.codehaus.mojo:cobertura-maven-plugin': Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:694)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:642)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:517)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:493)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:463)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:334)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:125)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
>         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:585)
>         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.maven.plugin.PluginManagerException: Unable to find the mojo 'org.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile' in the plugin 'org.codehaus.mojo:cobertura-maven-plugin'
>         at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:571)
>         at org.apache.maven.plugin.DefaultPluginManager.getReport(DefaultPluginManager.java:495)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:683)
>         ... 18 more
> Caused by: org.codehaus.plexus.component.repository.exception.ComponentLookupException: Unable to lookup component 'org.apache.maven.plugin.Mojoorg.codehaus.mojo:cobertura-maven-plugin:2.1:dump-datafile', it could not be created
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:335)
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:440)
>         at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:562)
>         ... 20 more
> Caused by: org.codehaus.plexus.component.factory.ComponentInstantiationException: Could not instanciate component: role: 'null', implementation: 'org.codehaus.mojo.cobertura.CoberturaDatafileDumpMojo'
>         at org.codehaus.plexus.component.factory.java.JavaComponentFactory.makeException(JavaComponentFactory.java:77)
>         at org.codehaus.plexus.component.factory.java.JavaComponentFactory.newInstance(JavaComponentFactory.java:62)
>         at org.codehaus.plexus.DefaultPlexusContainer.createComponentInstance(DefaultPlexusContainer.java:1464)
>         at org.codehaus.plexus.component.manager.AbstractComponentManager.createComponentInstance(AbstractComponentManager.java:93)
>         at org.codehaus.plexus.component.manager.PerLookupComponentManager.getComponent(PerLookupComponentManager.java:48)
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:331)
>         ... 22 more
> Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class file
>         at java.lang.ClassLoader.defineClass1(Native Method)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
>         at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
>         at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
>         at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>         at org.codehaus.classworlds.RealmClassLoader.loadClassDirect(RealmClassLoader.java:195)
>         at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:255)
>         at org.codehaus.classworlds.RealmClassLoader.loadClass(RealmClassLoader.java:214)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>         at java.lang.Class.getDeclaredConstructors0(Native Method)
>         at java.lang.Class.privateGetDeclaredConstructors(Class.java:2357)
>         at java.lang.Class.getConstructor0(Class.java:2671)
>         at java.lang.Class.newInstance0(Class.java:321)
>         at java.lang.Class.newInstance(Class.java:303)
>         at org.codehaus.plexus.component.factory.java.JavaComponentFactory.newInstance(JavaComponentFactory.java:44)
>         ... 26 more

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