[MNG-4586] Plugin prefix can't be resolved from plugin management if management entry is missing plugin version

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0-alpha-7
• Fix Version/s: 3.0-beta-1
• Component/s: Plugins and Lifecycle
• Assignee: Benjamin Bentmann
• Reporter: Benjamin Bentmann
• Created: 11/Mar/10 08:28
• Updated: 30/Mar/10 14:46
• Resolved: 11/Mar/10 10:51

Description

For a POM snippet like

<build>
  <pluginManagement>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.its.plugin</groupId>
        <artifactId>maven-it-plugin-expression</artifactId>
        <!-- version omitted -->
      </plugin>
    </plugins>
  </pluginManagement>
</build>

and the command "mvn itexpression:eval" we end up with

[WARNING] Failed to retrieve plugin descriptor for Plugin [org.apache.maven.its.plugin:maven-it-plugin-expression]: null
java.lang.NullPointerException
        at org.apache.maven.plugin.DefaultPluginDescriptorCache$CacheKey.<init>(DefaultPluginDescriptorCache.java:148)
        at org.apache.maven.plugin.DefaultPluginDescriptorCache.createKey(DefaultPluginDescriptorCache.java:61)
        at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getPluginDescriptor(DefaultMavenPluginManager.java:121)
        at org.apache.maven.plugin.DefaultBuildPluginManager.loadPlugin(DefaultBuildPluginManager.java:61)
        at org.apache.maven.plugin.prefix.internal.DefaultPluginPrefixResolver.resolveFromProject(DefaultPluginPrefixResolver.java:127)
        at org.apache.maven.plugin.prefix.internal.DefaultPluginPrefixResolver.resolveFromProject(DefaultPluginPrefixResolver.java:114)
        at org.apache.maven.plugin.prefix.internal.DefaultPluginPrefixResolver.resolve(DefaultPluginPrefixResolver.java:74)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.findPluginForPrefix(DefaultLifecycleExecutor.java:1798)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getMojoDescriptor(DefaultLifecycleExecutor.java:1536)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.calculateTaskSegments(DefaultLifecycleExecutor.java:863)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.calculateProjectBuilds(DefaultLifecycleExecutor.java:751)
...
[ERROR] No plugin found for prefix 'itexpression' in the current project [...]