Maven 2 & 3

Plugin prefix can't be resolved from plugin management if management entry is missing plugin version

Details

  • Type: Bug Bug
  • Status: Closed Closed
  • Priority: Minor Minor
  • Resolution: Fixed
  • Affects Version/s: 3.0-alpha-7
  • Fix Version/s: 3.0-beta-1
  • Component/s: Plugins and Lifecycle
  • Labels:
    None
  • Complexity:
    Intermediate
  • Number of attachments :
    0

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 [...]

Activity

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Benjamin Bentmann added a comment -

Fixed in r921932.

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Benjamin Bentmann added a comment - Fixed in r921932 .
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Paul Benedict added a comment -

Are the dashes really irrelevant for the command?

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Paul Benedict added a comment - Are the dashes really irrelevant for the command?
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Benjamin Bentmann added a comment -

Sorry, not sure what you mean.

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Benjamin Bentmann added a comment - Sorry, not sure what you mean.
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Paul Benedict added a comment -

The command given was "mvn itexpression:eval" but the plugin is maven-it-plugin-expression. So Maven recognizes plugin names even without the dashes?

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Paul Benedict added a comment - The command given was "mvn itexpression:eval" but the plugin is maven-it-plugin-expression. So Maven recognizes plugin names even without the dashes?
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Benjamin Bentmann added a comment -

"itexpression" is the prefix for the plugin as given in its plugin descriptor.

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Benjamin Bentmann added a comment - "itexpression" is the prefix for the plugin as given in its plugin descriptor.

People

  • Assignee:
    Benjamin Bentmann
    Reporter:
    Benjamin Bentmann
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Dates

  • Created:
    Updated:
    Resolved: