After a few hiccups, all ITs for Maven3 now execute well on the jaxb2-maven-plugin. However, one of the ITs is run by Maven2 on JDK 1.6, and the integration tests there expose the exception shown in the snippet below.
I would suspect that the error is created by parameters like the two below: @Parameter(required = false) private List<String> sources; or @Parameter(defaultValue = "${project.compileSourceRoots}", readonly = true, required = true) private List<String> sources; What would be the best approach to getting rid of these exceptions? Using an Array instead of List as parameter? Something else? Cause: Class 'java.util.List' cannot be instantiated [INFO] ------------------------------------------------------------------------ [DEBUG] Trace org.apache.maven.lifecycle.LifecycleExecutionException: Error configuring: org.codehaus.mojo:jaxb2-maven-plugin. Reason: Unable to parse the created DOM for plugin configuration at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:723) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138) at org.apache.maven.cli.MavenCli.main(MavenCli.java:362) at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60) 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.maven.plugin.PluginConfigurationException: Error configuring: org.codehaus.mojo:jaxb2-maven-plugin. Reason: Unable to parse the created DOM for plugin configuration at org.apache.maven.plugin.DefaultPluginManager.populatePluginFields(DefaultPluginManager.java:1363) at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:724) at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:468) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694) ... 17 more Caused by: org.codehaus.plexus.component.configurator.ComponentConfigurationException: Class 'java.util.List' cannot be instantiated at org.codehaus.plexus.component.configurator.converters.AbstractConfigurationConverter.instantiateObject(AbstractConfigurationConverter.java:121) at org.codehaus.plexus.component.configurator.converters.composite.CollectionConverter.fromConfiguration(CollectionConverter.java:73) 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:1357) ... 20 more*Caused by: java.lang.InstantiationException: java.util.List* at java.lang.Class.newInstance0(Class.java:340) at java.lang.Class.newInstance(Class.java:308) at org.codehaus.plexus.component.configurator.converters.AbstractConfigurationConverter.instantiateObject(AbstractConfigurationConverter.java:111) ... 25 more -- -- +==============================+ | Bästa hälsningar, | [sw. "Best regards"] | | Lennart Jörelid | EAI Architect & Integrator | | jGuru Europe AB | Mölnlycke - Kista | | Email: l...@jguru.se | URL: www.jguru.se | Phone | (skype): jgurueurope | (intl): +46 708 507 603 | (domestic): 0708 - 507 603 +==============================+