Cannot override plugin dependencies in maven 2.0.9
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                 Key: MNG-3725
                 URL: http://jira.codehaus.org/browse/MNG-3725
             Project: Maven 2
          Issue Type: Bug
          Components: Dependencies
    Affects Versions: 2.0.9
         Environment: Maven version: 2.0.9
Java version: 1.5.0_13
OS name: "mac os x" version: "10.5.4" arch: "ppc" Family: "unix"

            Reporter: Graham Leggett


When an attempt is made to override the version of torque-templates used by the 
maven-torque-plugin as below, maven still tries to use the original version of 
the torque-templates jar. The overridden jar is ignored.

According to http://jira.codehaus.org/browse/MNG-2972, this behaviour used to 
be broken in maven v2.0.8 and earlier, and was apparently fixed. This doesn't 
seem to be the case though.

The configuration looks like this:

     <plugin>
      <groupId>org.apache.torque</groupId>
      <artifactId>torque-maven-plugin</artifactId>
      <version>3.3</version>
      <dependencies>
        <dependency>
          <groupId>org.apache.derby</groupId>
          <artifactId>derby</artifactId>
          <version>10.4.1.3</version>
        </dependency>
        <dependency>
          <groupId>org.apache.torque</groupId>
          <artifactId>torque-templates</artifactId>
          <version>3.3.1</version>
        </dependency>
      </dependencies>
    </plugin>

The original torque-templates jar is v3.3. The overridden torque-templates jar 
is v3.3.1.

As the plugin gives no clues as to which version is being used, I deleted the 
original torque-templates v3.3 release from the local repository. What I 
expected to see was maven ignoring the v3.3 jar and using the v3.3.1 jar 
instead, but maven tries to re-download the v3.3 release and use it instead.

maven-torque-plugin depends on torque-gen, which in turn depends on 
torque-templates. It may be that direct plugin dependencies can be overridden, 
but transitive plugin dependencies cannot be overridden.


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