I got the same error last week when building from svn as well. I
wasn't sure if it was suppose to work, so I didn't bother wasting too
much time on it..
On 5/31/06, Julian Wood <[EMAIL PROTECTED]> wrote:
I'm having an issue with the maven-changelog-plugin, which seems to
have just crept up over the past few days, after working fine. I'm
building it from svn, creating 2.0-SNAPSHOT, using rev. 410386.
Is it working for other people? It seems the reports section of the
plugin is somehow screwing things up - if I omit it, there are no
errors (but also no reports). Here's the relevant portion of my pom:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-changelog-plugin</artifactId>
<version>2.0-SNAPSHOT</version>
<reportSets>
<reportSet>
<id>scm-changes</id>
<configuration>
<type>range</type>
<range>30</range>
<basedir>${basedir}/src</basedir>
<dateFormat>yyyy-MM-dd HH:mm:ss</dateFormat>
</configuration>
<reports>
<report>changelog</report>
<report>file-activity</report>
<report>dev-activity</report>
</reports>
</reportSet>
</reportSets>
</plugin>
Can't understand why I suddenly get this error, but maybe someone can
shed some light on it? Is plexus really trying to instantiate List
(which is abstract)? This is mvn 2.0.4, happens with all my projects
which previously worked, and the cmd is simply 'mvn site'. Other
plugins with a reports list work fine, so I'm somewhat baffled.
Haven't looked at plexus yet.
[ERROR] BUILD ERROR
[INFO]
------------------------------------------------------------------------
[INFO] Failed to configure plugin parameters for:
org.apache.maven.plugins:maven-changelog-plugin:2.0-SNAPSHOT
Cause: Class 'java.util.List' cannot be instantiated
[INFO]
------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.lifecycle.LifecycleExecutionException: Error getting
reports from the plugin 'org.apache.maven.plugins:maven-changelog-
plugin'
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports
(DefaultLifecycleExecutor.java:694)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports
(DefaultLifecycleExecutor.java:645)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals
(DefaultLifecycleExecutor.java:512)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoa
l(DefaultLifecycleExecutor.java:488)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal
(DefaultLifecycleExecutor.java:458)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandle
Failures(DefaultLifecycleExecutor.java:306)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(
DefaultLifecycleExecutor.java:273)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute
(DefaultLifecycleExecutor.java:140)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:
322)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:115)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:256)
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.PluginConfigurationException:
Error configuring: org.apache.maven.plugins:maven-changelog-plugin.
Reason: Unable to parse the created DOM for plugin configuration
at
org.apache.maven.plugin.DefaultPluginManager.populatePluginFields
(DefaultPluginManager.java:1036)
at
org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo
(DefaultPluginManager.java:576)
at org.apache.maven.plugin.DefaultPluginManager.getReport
(DefaultPluginManager.java:462)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports
(DefaultLifecycleExecutor.java:678)
... 18 more
Caused by:
org.codehaus.plexus.component.configurator.ComponentConfigurationExcepti
on: Class 'java.util.List' cannot be instantiated
at
org.codehaus.plexus.component.configurator.converters.AbstractConfigurat
ionConverter.instantiateObject(AbstractConfigurationConverter.java:121)
at
org.codehaus.plexus.component.configurator.converters.composite.Collecti
onConverter.fromConfiguration(CollectionConverter.java:73)
at
org.codehaus.plexus.component.configurator.converters.ComponentValueSett
er.configure(ComponentValueSetter.java:247)
at
org.codehaus.plexus.component.configurator.converters.composite.ObjectWi
thFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:
137)
at
org.codehaus.plexus.component.configurator.BasicComponentConfigurator.co
nfigureComponent(BasicComponentConfigurator.java:56)
at
org.apache.maven.plugin.DefaultPluginManager.populatePluginFields
(DefaultPluginManager.java:1030)
... 21 more
Caused by: java.lang.InstantiationException: java.util.List
at java.lang.Class.newInstance0(Class.java:335)
at java.lang.Class.newInstance(Class.java:303)
at
org.codehaus.plexus.component.configurator.converters.AbstractConfigurat
ionConverter.instantiateObject(AbstractConfigurationConverter.java:111)
... 26 more
Thanks,
J
--
Julian Wood <[EMAIL PROTECTED]>
Software Engineer
Teaching & Learning Centre
University of Calgary
http://tlc.ucalgary.ca
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--
Regards, Ole-Martin Mørk.
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