the component descriptor and when it's loaded we can add the discoverer, that would be simpler. I could
  also do this with the lister as well
i'l
// 1 the metadata -> model plugin/mojo descriptor
// 2 tools for doing the mapping
// 3 the component model -> interfaces for the plugin

// The plugin manager should load up a directory structure of plugins.

      <plugin>
        <groupId>build</groupId>
        <artifactId>plugin</artifactId>
        <executions>
          <execution>
            <id>a</id>
            <phase>test</phase>
          </execution>
          <execution>
            <id>a</id>
            <phase>test</phase>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>

  <profiles>
    <profile>

  <version>0.1</version>

  <build>
    <plugins>
      <plugin>
        <groupId>test</groupId>
        <artifactId>good</artifactId>
        <version>1.0</version>
      </plugin>
      <plugin>
        <groupId>test</groupId>
        <artifactId>mip</artifactId>
        <version>${missing.property}</version>
      </plugin>
      <plugin>
        <groupId>test</groupId>

bo <bo@TeamCity> 1621304116 +0200

          <overrides>
            <parent-only>parent</parent-only>
            <parent>parent</parent>
          </overrides>
        </configuration>
      </plugin>
    </plugins>
  </build>

  <reporting>
    <plugins>
      <plugin>
        <artifactId>MNG-5115</artifactId>
        <reportSets>
          <reportSet>
            <id>default-inherited</id>
            <reports>

  <artifactId>foo</artifactId>
  <groupId>bar</groupId>
  <version>1.0</version>
  <packaging>pack</packaging>
  <build>
    <plugins>
      <plugin>
        <artifactId>maven-it-plugin</artifactId>
        <version></version>
      </plugin>
    </plugins>
  </build>

      <subscribe>******@****.***</subscribe>
      <unsubscribe>******@****.***</unsubscribe>
    </mailingList-->
  </mailingLists>

  <build>
    <plugins>
      <plugin>
        <groupId>inheritance.configuration</groupId>
        <artifactId>default</artifactId>
        <version>3.0</version>
        <configuration>
          <defaults>
            <parent>child</parent>

          <overrides combine.self="override">
            <parent>child</parent>
            <child>child</child>
          </overrides>
        </configuration>
      </plugin>
    </plugins>
  </build>

  <reporting>
    <plugins>
      <plugin>
        <artifactId>MNG-5115</artifactId>
        <reportSets>
          <reportSet>
            <id>default-inherited</id>
            <reports>

  <version>1.0</version>

  <build>
    <plugins>
      <plugin>
        <artifactId>maven-it-plugin</artifactId>
        <version>1.0</version>
        <dependencies>
          <dependency>
            <!-- groupId missing -->
            <artifactId>a</artifactId>
            <version>2.0</version>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>

under the License.
-->

<project>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>aid</artifactId>
  <groupId>gid</groupId>
  <version>0.1</version>

  <build>
    <plugins>
      <plugin>
        <artifactId>maven-it-plugin</artifactId>
        <version>1.0</version>
        <dependencies>
          <dependency>
            <groupId>test</groupId>
            <artifactId>a</artifactId>