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https://issues.apache.org/jira/browse/MNG-2496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17902573#comment-17902573
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Jörg Hohwiller commented on MNG-2496:
-------------------------------------
[~ctubbsii] thanks for clarification. I am using maven for 2 decades but never
noticed this effect in detail.
Thanks for clarification. I guess after reading the discussions here that I was
not the only one having this miss-understanding so great that this is now clear.
Now I fully understand the PoV why this feature is not planned as implied.
So an alternative could be to consider dependencyManagement only if version is
omitted and then take that version from depMgmt and nothing else for plugins or
as you suggested to define a new element for it if you prefer.
I personally would suggest to use existing dependencyManagement but only to
fill in a potentially omitted version of a plugin dependnecy and nothing else
(so dependencyManagement has not impact on plugins classworld by itself at all,
nothing existing can break, etc.).
Would be simple, not require a big model change and make sense from most
end-user perspective. But just my PoV.
> dependencyManagement not used for dependencies in plugin section.
> -----------------------------------------------------------------
>
> Key: MNG-2496
> URL: https://issues.apache.org/jira/browse/MNG-2496
> Project: Maven
> Issue Type: Bug
> Components: Artifacts and Repositories
> Affects Versions: 2.0.4
> Reporter: Brian E Fox
> Priority: Major
> Fix For: 4.1.0
>
>
> In my parent, I have a dependencyManagement set with this jar:
> <dependencyManagement>
> <dependencies>
> <dependency>
> <groupId>com.stchome.build.maven</groupId>
> <artifactId>testng-initializer</artifactId>
> <version>1.0</version>
> <scope>test</scope>
> </dependency>
> I have a plugin specified that had a dependency like this:
> <plugin>
> <artifactId>maven-antrun-plugin</artifactId>
> <executions>
> <execution>
> <id>run-testng</id>
> <phase>test</phase>
> <configuration>
> <tasks>
> <java
> classname="com.stchome.testng.initializer.PackageInitializer">
> <arg
> path="${project.build.testOutputDirectory}"/>
> <arg
> path="${project.build.testSourceDirectory}"/>
> </java>
> <ant antfile="run-testng.xml"
> inheritRefs="true" inheritAll="true">
> <property name="target.dir"
> value="${project.build.directory}"/>
> <property name="test-classes.dir"
> value="${project.build.testOutputDirectory}"/>
> <property name="test-source.dir"
> value="${project.build.testSourceDirectory}"/>
> </ant>
> </tasks>
> </configuration>
> <goals>
> <goal>run</goal>
> </goals>
> </execution>
> </executions>
> <dependencies>
> <dependency>
> <groupId>com.stchome.build.maven</groupId>
> <artifactId>testng-initializer</artifactId>
> </dependency>
> </dependencies>
> </plugin>
> When I build, it doesn't seem to resolve this dependency version from
> dependencyManagement
> [INFO] An invalid artifact was detected.
> This artifact might be in your project's POM, or it might have been included
> transitively du
> information we do have for this artifact:
> o GroupID: com.stchome.build.maven
> o ArtifactID: testng-initializer
> o Version: <<< MISSING >>>
> o Type: jar
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Trace
> org.apache.maven.artifact.InvalidArtifactRTException: For artifact
> {com.stchome.build.maven:
> n cannot be empty.
> at
> org.apache.maven.artifact.DefaultArtifact.validateIdentity(DefaultArtifact.java:1
> at
> org.apache.maven.artifact.DefaultArtifact.<init>(DefaultArtifact.java:119)
> at
> org.apache.maven.artifact.factory.DefaultArtifactFactory.createArtifact(DefaultAr
> at
> org.apache.maven.artifact.factory.DefaultArtifactFactory.createDependencyArtifact
> at
> org.apache.maven.project.artifact.MavenMetadataSource.createArtifacts(MavenMetada
> at
> org.apache.maven.plugin.DefaultPluginManager.addPlugin(DefaultPluginManager.java:
> at
> org.apache.maven.plugin.DefaultPluginManager.verifyVersionedPlugin(DefaultPluginM
> at
> org.apache.maven.plugin.DefaultPluginManager.verifyPlugin(DefaultPluginManager.ja
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.verifyPlugin(DefaultLifecycle
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.bindPluginToLifecycle(Default
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.constructLifecycleMappings(De
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleE
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLi
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecu
> 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
> at java.lang.reflect.Method.invoke(Method.java:324)
> 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)
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