core-integration-testing/core-integration-tests/src/test/resources/it0110-pluginDependenciesComeFromPluginRepos/pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>org.apache.maven.it</groupId>
  <artifactId>mng-2539</artifactId>
  <version>1.0-SNAPSHOT</version>
  <description>
    Dependencies specified in plugins are only retrieved from pluginRepositories.
  </description>

  <properties>
    <issue>MNG-2539</issue>
  </properties>

  <repositories>
    <repository>
      <id>javamail-local</id>
      <url>file://${basedir}/repository</url>
    </repository>
  </repositories>

  <!-- pluginRepositories are deprecated in 2.1-SNAPSHOT (trunk), use repositories instead. -->
  <!--
  <pluginRepositories>
    <pluginRepository>
      <id>javamail-local</id>
      <url>file://${basedir}/repository</url>
    </pluginRepository>
  </pluginRepositories>
  -->

  <build>
    <plugins>
      <plugin>
        <artifactId>maven-clean-plugin</artifactId>
        <dependencies>
          <dependency>
            <groupId>org.apache.maven.it</groupId>
            <artifactId>mail</artifactId>
            <version>1.3.2</version>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>
</project>