NPE in groupID-less POMs
------------------------
Key: MNG-1527
URL: http://jira.codehaus.org/browse/MNG-1527
Project: Maven 2
Type: Bug
Components: maven-artifact
Versions: 2.0
Environment: JDK 1.5.0_05, Kubunto Linux 5.1
Reporter: Arik Kfir
I have a parent POM which defines a group ID and is parsed+deployed OK.
I also have a child POM which extends the parent POM. When running the following on the child
POM, I get:
arik@corleon:~/projects/corleon-site/trunk$ mvn release:prepare -Dusername=arikkfir
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'release'.
[INFO] ----------------------------------------------------------------------------
[INFO] Building Corleon
[INFO] task-segment: [release:prepare] (aggregator-style)
[INFO] ----------------------------------------------------------------------------
[INFO] [release:prepare]
[INFO] What tag name should be used?
RELEASE-1.0
[INFO] Verifying there are no local modifications ...
[INFO] Checking lineage for snapshots ...
[INFO] Checking dependencies for snapshots ...
[INFO] Checking plugins for snapshots ...
[INFO] What is the release version for 'org.corleon:corleon'? [1.0]
[INFO] Checking in modified POMs
[INFO] Tagging release with the label RELEASE-1.0.
[INFO] What is the new development version for 'org.corleon:corleon'? [1.1-SNAPSHOT]
[INFO] ----------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ----------------------------------------------------------------------------
[INFO] groupId was null
[INFO] ----------------------------------------------------------------------------
[INFO] Trace
java.lang.NullPointerException: groupId was null
at org.apache.maven.artifact.ArtifactUtils.versionlessKey(ArtifactUtils.java:47)
at org.apache.maven.plugins.release.helpers.ProjectScmRewriter.restoreScmInfo(ProjectScmRewriter.java:51)
at org.apache.maven.plugins.release.PrepareReleaseMojo.execute(PrepareReleaseMojo.java:259)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:399)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:519)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:482)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:452)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:301)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:214)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:137)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:316)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:113)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:249)
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] ----------------------------------------------------------------------------
[INFO] Total time: 28 seconds
[INFO] Finished at: Sat Nov 12 02:33:49 IST 2005
[INFO] Final Memory: 3M/6M
[INFO] ----------------------------------------------------------------------------
When I add the groupId to the child POM it works ok.
Seems to me that the group ID should be inherited from the parent POM as well, no?
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