[
http://jira.codehaus.org/browse/MASSEMBLY-306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Work on MASSEMBLY-306 started by John Casey.
> Dependency resolution fails with an NPE for a provided dependency with a
> fixed version
> --------------------------------------------------------------------------------------
>
> Key: MASSEMBLY-306
> URL: http://jira.codehaus.org/browse/MASSEMBLY-306
> Project: Maven 2.x Assembly Plugin
> Issue Type: Bug
> Affects Versions: 2.2-beta-2
> Environment: Maven 2.0.8, Java 1.6.0_03-b05
> Reporter: Thomas Dudziak
> Assignee: John Casey
> Priority: Critical
> Fix For: 2.2-beta-3
>
> Original Estimate: 0 minutes
> Remaining Estimate: 0 minutes
>
> A POM like this:
> <?xml version="1.0" encoding="UTF-8"?><project>
> <modelVersion>4.0.0</modelVersion>
> <groupId>maven-test</groupId>
> <artifactId>maven-test</artifactId>
> <name>maven-test</name>
> <version>1.0-SNAPSHOT</version>
> <url>http://maven.apache.org</url>
> <dependencies>
> <dependency>
> <groupId>log4j</groupId>
> <artifactId>log4j</artifactId>
> <version>[1.2.13]</version>
> <scope>provided</scope>
> </dependency>
> </dependencies>
> <build>
> <plugins>
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-assembly-plugin</artifactId>
> <version>2.2-beta-2</version>
> <configuration>
> <descriptorRefs>
> <descriptorRef>jar-with-dependencies</descriptorRef>
> </descriptorRefs>
> <archive>
> <manifest>
> <mainClass>ning.dashboard.DashboardServer</mainClass>
> </manifest>
> </archive>
> </configuration>
> <executions>
> <execution>
> <id>make-assembly</id>
> <phase>package</phase>
> <goals>
> <goal>attached</goal>
> </goals>
> </execution>
> </executions>
> </plugin>
> </plugins>
> </build>
> </project>
> fails with this error:
> [INFO] Processing DependencySet (output=)
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO]
> ------------------------------------------------------------------------
> [INFO] version was null for log4j:log4j
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Trace
> java.lang.NullPointerException: version was null for log4j:log4j
> 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.artifact.filter.ScopeArtifactFilter.include(ScopeArtifactFilter.java:142)
> at
> org.apache.maven.project.artifact.MavenMetadataSource.createArtifacts(MavenMetadataSource.java:345)
> at
> org.apache.maven.plugin.assembly.artifact.DefaultDependencyResolver.resolveDependencies(DefaultDependencyResolver.java:123)
> at
> org.apache.maven.plugin.assembly.archive.task.AddDependencySetsTask.resolveDependencyArtifacts(AddDependencySetsTask.java:205)
> at
> org.apache.maven.plugin.assembly.archive.task.AddDependencySetsTask.addDependencySet(AddDependencySetsTask.java:132)
> at
> org.apache.maven.plugin.assembly.archive.task.AddDependencySetsTask.execute(AddDependencySetsTask.java:116)
> at
> org.apache.maven.plugin.assembly.archive.phase.DependencySetAssemblyPhase.execute(DependencySetAssemblyPhase.java:74)
> at
> org.apache.maven.plugin.assembly.archive.DefaultAssemblyArchiver.createArchive(DefaultAssemblyArchiver.java:129)
> at
> org.apache.maven.plugin.assembly.mojos.AbstractAssemblyMojo.execute(AbstractAssemblyMojo.java:322)
> at
> org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:447)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:539)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:480)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:459)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:333)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:126)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:282)
> 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)
> As far as I can see in the code, the problem is twofold:
> * the DefaultArtifact does not set a recommended version even though there is
> a single version for the artifact (the version is not only recommended but
> forced)
> * the assembly plugin does not handle the forced version properly
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