[MNG-4451] Parametized <groupId/> declarations fail in two level deep multi-module project

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 2.2.1
• Component/s: Bootstrap & Build
• Environment: Windows XP, JDK 1.6.0_16
• Assignee: Benjamin Bentmann
• Reporter: J. Michael McGarr
• Created: 17/Nov/09 09:46
• Updated: 22/Apr/10 04:13
• Resolved: 22/Apr/10 04:13

Description

We utilized the appfuse 2.x multi-module project setup where the modules of the project declare their own <groupId/> value as:

<groupId>$[pom.parent.groupId].$[pom.parent.artifactId]</groupId>

(note: replaced the curly braces with brackets due to a wiki error)
When you add a second level of modules, this approach does not seem to work in Maven. The second level child module, which declares it parent to be a first level child module. It appears that the parameter declaration in the first-level module is ambiguous or is resolving to value as seen by the second-level module. This can be seen below in the output of the error the Maven reactor provides.

I was able to work around this error by changing the parametized groupId declaration in the first-level module pom and making it explicit. If there is something wrong with this approach or another parametized setting I need to use, please let me know.

C:\DEV\workspace\parent>mvn clean install
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error building POM (may not be this project's POM).

Project ID: com.maventest.parent.first-level:second-level:jar:null

Reason: Cannot find parent: com.maventest.parent:first-level for project: com.maventest.parent.first-level:second-level:jar:null for project com.maventest.parent.first-level:second-level:jar:null

[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.reactor.MavenExecutionException: Cannot find parent: com.maventest.parent:first-level for project: com.maventest.parent.first-level:second-level:jar:null for project com.maventest.parent.first-level:second-level:jar:null
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:404)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:272)
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.project.ProjectBuildingException: Cannot find parent: com.maventest.parent:first-level for project: com.maventest.parent.first-level:second-level:jar:null for project com.maventest.parent.first-level:second-level:jar:null
at org.apache.maven.project.DefaultMavenProjectBuilder.assembleLineage(DefaultMavenProjectBuilder.java:1396)
at org.apache.maven.project.DefaultMavenProjectBuilder.buildInternal(DefaultMavenProjectBuilder.java:823)
at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFileInternal(DefaultMavenProjectBuilder.java:508)
at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:200)
at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:604)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:487)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:560)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:560)
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:391)
... 12 more
Caused by: org.apache.maven.project.ProjectBuildingException: POM 'com.maventest.parent:first-level' not found in repository: Unable to download the artifact from any repository

com.maventest.parent:first-level:pom:1.0-SNAPSHOT

from the specified remote repositories:
central (http://repo1.maven.org/maven2)

for project com.maventest.parent:first-level
at org.apache.maven.project.DefaultMavenProjectBuilder.findModelFromRepository(DefaultMavenProjectBuilder.java:605)
at org.apache.maven.project.DefaultMavenProjectBuilder.assembleLineage(DefaultMavenProjectBuilder.java:1392)
... 20 more
Caused by: org.apache.maven.artifact.resolver.ArtifactNotFoundException: Unable to download the artifact from any repository

com.maventest.parent:first-level:pom:1.0-SNAPSHOT

from the specified remote repositories:
central (http://repo1.maven.org/maven2)

at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:228)
at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:90)
at org.apache.maven.project.DefaultMavenProjectBuilder.findModelFromRepository(DefaultMavenProjectBuilder.java:558)
... 21 more
Caused by: org.apache.maven.wagon.ResourceDoesNotExistException: Unable to download the artifact from any repository
at org.apache.maven.artifact.manager.DefaultWagonManager.getArtifact(DefaultWagonManager.java:404)
at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:216)
... 23 more
[INFO] ------------------------------------------------------------------------
[INFO] Total time: < 1 second
[INFO] Finished at: Tue Nov 17 09:57:27 EST 2009
[INFO] Final Memory: 2M/4M
[INFO] ------------------------------------------------------------------------

Issue Links

• is related to: MNG-4297 Disallow use of properties in the project coordinates