[MDEP-67] NPE when resolving the version of a dependency

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0-alpha-1
• Fix Version/s: 2.0-alpha-2
• Assignee: Brian E Fox
• Reporter: Stephane Nicoll
• Created: 09/Mar/07 03:41
• Updated: 10/Mar/16 13:50
• Resolved: 11/Mar/07 21:53

Description

In my project I have the following dependency

<dependency>
     <groupId>com.foo.shared.bar</groupId>
     <artifactId>foo-bar</artifactId>
     <version>5.8.3</version>
     <classifier>obfuscated</classifier>    
 </dependency>

I try to get the sources without specifying the version so I have the following config:

<plugin>
         <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-dependency-plugin</artifactId>
              <executions>
                    <execution>
                        <id>copy</id>
                        <phase>compile</phase>
                        <goals>
                            <goal>copy</goal>
                        </goals>
                        <configuration>
                            <artifactItems>
                                <artifactItem>
                                    <groupId>com.foo.shared.bar</groupId>
                                    <artifactId>foo-bar</artifactId>
                                    <type>java-source</type>
                                    <outputDirectory>${project.build.directory}/foo-sources</outputDirectory>                                    
                                </artifactItem>
                            </artifactItems>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

And I got this

java.lang.NullPointerException
        at org.apache.maven.plugin.dependency.fromConfiguration.AbstractFromConfigurationMojo.fillMissingArtifactVersion(AbstractFromConfigurationMojo.java:230)
        at org.apache.maven.plugin.dependency.fromConfiguration.AbstractFromConfigurationMojo.getProcessedArtifactItems(AbstractFromConfigurationMojo.java:136)
        at org.apache.maven.plugin.dependency.fromConfiguration.CopyMojo.execute(CopyMojo.java:65)
        at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:412)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:534)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:475)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:454)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:306)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:273)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:140)
        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: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)