Hi,
I have the following error using Maven 3.0-beta-1. Before trying to reproduce
on a smaller project, could you please have a look and tell me if this is a
known issue. The only similar issue I have found is: MENFORCER-55
$ mvn versions:display-plugin-updates -X
[...]
[DEBUG] final aggregate version map
org.apache.maven.plugins:maven-clean-plugin:2.3
org.apache.maven.plugins:maven-surefire-plugin:2.4.3
org.codehaus.mojo:exec-maven-plugin:1.1
org.apache.maven.plugins:maven-ear-plugin:2.3.2
org.apache.maven.plugins:maven-war-plugin:2.1-beta-1
org.apache.maven.plugins:maven-jar-plugin:2.3
org.apache.maven.plugins:maven-source-plugin:2.1.1
org.apache.maven.plugins:maven-dependency-plugin:2.1
org.apache.maven.plugins:maven-assembly-plugin:2.2-beta-4
org.apache.maven.plugins:maven-javadoc-plugin:2.6.1
org.apache.maven.plugins:maven-compiler-plugin:2.0.2
org.apache.maven.plugins:maven-install-plugin:2.3
org.apache.maven.plugins:maven-site-plugin:2.0.1
org.apache.maven.plugins:maven-release-plugin:2.0-beta-8
[DEBUG] after adding local pluginManagement
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.250s
[INFO] Finished at: Mon Apr 26 14:18:46 CEST 2010
[INFO] Final Memory: 6M/19M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal
org.codehaus.mojo:versions-maven-plugin:1.1:display-plugin-updates
(default-cli) on project myproject: Execution default-cli of goal
org.codehaus.mojo:versions-maven-plugin:1.1:display-plugin-updates failed.
NullPointerException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal
org.codehaus.mojo:versions-maven-plugin:1.1:display-plugin-updates
(default-cli) on project myproject: Execution default-cli of goal
org.codehaus.mojo:versions-maven-plugin:1.1:display-plugin-updates failed.
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:149)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:77)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:69)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:82)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:54)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.singleThreadedBuild(DefaultLifecycleExecutor.java:218)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:190)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:246)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:95)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:430)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:160)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:124)
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.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at
org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at
org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at
org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution
default-cli of goal
org.codehaus.mojo:versions-maven-plugin:1.1:display-plugin-updates failed.
at
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:114)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:133)
... 19 more
Caused by: java.lang.NullPointerException
at
org.codehaus.plexus.util.ReflectionUtils.getValueIncludingSuperclasses(ReflectionUtils.java:179)
at
org.codehaus.mojo.versions.DisplayPluginUpdatesMojo.getBoundPlugins(DisplayPluginUpdatesMojo.java:660)
at
org.codehaus.mojo.versions.DisplayPluginUpdatesMojo.getLifecyclePlugins(DisplayPluginUpdatesMojo.java:619)
at
org.codehaus.mojo.versions.DisplayPluginUpdatesMojo.getProjectPlugins(DisplayPluginUpdatesMojo.java:1096)
at
org.codehaus.mojo.versions.DisplayPluginUpdatesMojo.execute(DisplayPluginUpdatesMojo.java:277)
at
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:105)
... 20 more
It seems to works fine with Maven 2.2.1 (in fact it is taking a very long time
to check update of each plugin so the execution with Maven 2 is still not
completed, but with Maven 3 the NPE occurs after few seconds only).
Regards,
Julien
----- Message d'origine ----
> De : Benjamin Bentmann <bentm...@apache.org>
> À : annou...@maven.apache.org; us...@maven.apache.org
> Cc : Maven Developers List <dev@maven.apache.org>
> Envoyé le : Ven 23 avril 2010, 15 h 05 min 57 s
> Objet : [ANN] Apache Maven 3.0-beta-1 Released
>
> The Maven team is pleased to announce the release of Apache Maven
> 3.0-beta-1.
Maven is a project comprehension and build tool, designed to
> simplify the process of maintaining a healthy development lifecycle for your
> project. You can read more here:
> href="http://maven.apache.org/"; target=_blank
> >http://maven.apache.org/
Downloads of source and binary
> distributions are listed in our download section:
> href="http://maven.apache.org/download.html"; target=_blank
> >http://maven.apache.org/download.html
A major goal of Maven 3.0 is
> to be compatible, to the extent possible, with existing plugins and projects
> designed for Maven 2.x. Users interested in testing this beta release should
> have a glance at the compatibility notes for known differences between Maven
> 3.0
> and Maven 2.x:
> href="http://cwiki.apache.org/MAVEN/maven-3x-compatibility-notes.html";
> target=_blank
> >http://cwiki.apache.org/MAVEN/maven-3x-compatibility-notes.html
If
> you encounter unexpected problems while using Maven 3.0-beta-1, please feel
> free
> to contact us via the Maven developer list:
> href="http://maven.apache.org/mail-lists.html"; target=_blank
> >http://maven.apache.org/mail-lists.html
Release Notes - Maven 2
> & 3 - Version 3.0-beta-1
** Bug
* [MNG-1751] -
> merging metadata doesn't fail when timestamp is in the future
*
> [MNG-2103] - Inheritance of <plugin> overrides that of
> <execution>
* [MNG-2222] - dependency to dependency
> without source code fails
* [MNG-2276] - profile activation by
> property doesn't work with properties defined in settings.
*
> [MNG-2994] - Snapshot repositories are not checked when using ranges
> * [MNG-3092] - Version ranges with non-snapshot bounds can contain
> snapshot versions
* [MNG-3133] -
> DefaultModelInheritence::appendPath assumes it is operating on
> interpolated/literal paths
* [MNG-3470] - Build does not fail
> on corrupted POM even with checksumPolicy=fail
* [MNG-3477] -
> Authentication failures on dependency download aren't reported
> * [MNG-3529] - mvn -Da=" " throws an excepltion
* [MNG-3616] -
> Null Pointer Exception when mirrorOf missing from mirror in
> settings.xml
* [MNG-3700] - ModelUtils.clone doesn't clone
> plugin entries where inherited == false
* [MNG-4022] -
> Incorrect merge behavior using profile driven plugin configuration
> * [MNG-4326] - Maven should not check snapshot repositories for
> dependencies in the reactor
* [MNG-4418] - Dependency
> resolution appears to misbehave if a remote repository uses the id
> "local"
* [MNG-4453] - [regression] Plugin versions defined in
> a lifecycle mapping are not respected
* [MNG-4555] - mvn
> archetype:generate -o (offline) still results in a "checking updates from
> central"
* [MNG-4580] - Plugin dependencies for module ignored
> when building from aggregator project using direct plugin invocation
> * [MNG-4586] - Plugin prefix can't be resolved from plugin management if
> management entry is missing plugin version
* [MNG-4590] -
> [regression] System properties are no longer interpolated in imported
> POMs
* [MNG-4600] - [regression] Optional flag from dependency
> management applied to dependencies
* [MNG-4618] -
> maven-javadoc-plugin aggregate-jar fails with maven3 and multiple
> modules
* [MNG-4625] - Interpolation of settings.xml fails if
> an expression's value contains XML markup
* [MNG-4629] -
> [regression] POM validation fails upon non-existing system-scope
> dependency
* [MNG-4632] - Class loading is not
> thread-safe
** Improvement
* [MNG-1701] - Validate that
> a plugin is not configured twice in the pom
* [MNG-2187] -
> Improve error message when the pom is encoded in the wrong charset
> * [MNG-2741] - [regression] Meaningless error message: "Error
> transferring file"
* [MNG-3004] - Allow build lifecycle to
> execute projects in parallel
* [MNG-3779] - Improve error
> message when trying to execute mojo with no pom.xml
*
> [MNG-4162] - Removal of all reporting logic from the core of Maven
> * [MNG-4194] - API to safely release of plugin realms
*
> [MNG-4591] - Enhance the download rate output to include downloaded file
> name
* [MNG-4610] - Bump maven-release-plugin to v2.0 in super
> POM
* [MNG-4619] - Issue warning in case parent.relativePath
> points at POM with different groupId/artifactId
* [MNG-4623] -
> model parsing errors can be less helpful in Maven 3
*
> [MNG-4628] - ReactorArtifactRepository is not setup soon enough for
> AbstractMavenLifecycleParticipant#afterProjectsRead
*
> [MNG-4634] - Allow custom lifecycles
** Task
*
> [MNG-3917] - Complete the POM construction tests which will be the validation
> for the specification
Enjoy,
-The Maven
> team
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