[
http://jira.codehaus.org/browse/MNG-3372?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Brian Fox closed MNG-3372.
--------------------------
Resolution: Cannot Reproduce
Fix Version/s: (was: 2.0.9)
Not able to reproduce this.
> dependency:tree throws exception
> --------------------------------
>
> Key: MNG-3372
> URL: http://jira.codehaus.org/browse/MNG-3372
> Project: Maven 2
> Issue Type: Bug
> Components: Artifacts and Repositories
> Affects Versions: 2.0.8
> Reporter: Simon Kitching
> Assignee: Brian Fox
> Attachments: pom.xml
>
>
> Running
> mvn -Papache
> org.apache.maven.plugins:maven-dependency-plugin:2.0-alpha-5-SNAPSHOT:tree
> on a pom containing the following entry throws an exception, unless an
> exclusion is applied as shown below.
> <dependency>
> <groupId>jasperreports</groupId>
> <artifactId>jasperreports</artifactId>
> <version>2.0.0</version>
> <scope>compile</scope>
> <exclusions>
> <!-- This exclusion needed to avoid crash in
> dependency:tree version 2.0-alpha-5-SNAPSHOT -->
> <exclusion>
> <groupId>commons-digester</groupId>
>
> <artifactId>commons-digester</artifactId>
> </exclusion>
> <exclusion>
> <groupId>xml-apis</groupId>
> <artifactId>xml-apis</artifactId>
> </exclusion>
> <exclusion>
> <groupId>eclipse</groupId>
> <artifactId>jdtcore</artifactId>
> </exclusion>
> </exclusions>
> </dependency>
> <dependency>
> <groupId>commons-digester</groupId>
> <artifactId>commons-digester</artifactId>
> <version>1.8</version>
> <scope>compile</scope>
> </dependency>
> Exception:
> [ERROR] FATAL ERROR
> [INFO]
> ------------------------------------------------------------------------
> [INFO] version was null for commons-digester:commons-digester
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Trace
> java.lang.NullPointerException: version was null for
> commons-digester:commons-digester
> at
> org.apache.maven.artifact.DefaultArtifact.getBaseVersion(DefaultArtifact.java:362)
> at
> org.apache.maven.artifact.DefaultArtifact.getId(DefaultArtifact.java:225)
> at
> org.apache.maven.shared.dependency.tree.DependencyTreeResolutionListener.flushDependencyManagement(DependencyTreeResolutionListener.java:524)
> at
> org.apache.maven.shared.dependency.tree.DependencyTreeResolutionListener.omitForNearer(DependencyTreeResolutionListener.java:209)
> at
> org.apache.maven.artifact.resolver.DefaultArtifactCollector.fireEvent(DefaultArtifactCollector.java:487)
> at
> org.apache.maven.artifact.resolver.DefaultArtifactCollector.fireEvent(DefaultArtifactCollector.java:462)
> at
> org.apache.maven.artifact.resolver.DefaultArtifactCollector.recurse(DefaultArtifactCollector.java:234)
> at
> org.apache.maven.artifact.resolver.DefaultArtifactCollector.recurse(DefaultArtifactCollector.java:370)
> at
> org.apache.maven.artifact.resolver.DefaultArtifactCollector.recurse(DefaultArtifactCollector.java:370)
> at
> org.apache.maven.artifact.resolver.DefaultArtifactCollector.collect(DefaultArtifactCollector.java:76)
> at
> org.apache.maven.shared.dependency.tree.DefaultDependencyTreeBuilder.buildDependencyTree(DefaultDependencyTreeBuilder.java:102)
> at
> org.apache.maven.plugin.dependency.TreeMojo.execute(TreeMojo.java:218)
> My uneducated guess is that for that particular version of the dependency,
> neither the dependency's pom nor any parent pom defines a version for
> commons-digester.
> PS: dependency:tree rocks!
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