// Plugins
        // ----------------------------------------------------------------------

        List<Plugin> plugins = project.getBuildPlugins();

        // Plugin0 [plexus]

        String key = "org.apache.maven.plugins:maven-plexus-plugin";

        Plugin plugin = null;
        for (Plugin check : plugins) {
            if (key.equals(check.getKey())) {

            |
   [plexus.core.maven]
     ^            ^
     |            |
[plugin0]      [plugin1]
+-----+

 The <<<plexus.core>>> realm contains the resources required to run any
 plexus application; The <<<plexus.core.maven>>> realm contains all of the
 resources required to run Maven. Each subsequent plugin realm contains the
 JAR plugin as well as its dependencies. The realms noted above are setup

  <modelVersion>4.0.0</modelVersion>

  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-plugin-plugin</artifactId>
  <version>0.1</version>
  <packaging>maven-plugin</packaging>

  <name>Maven Integration Test Plugin</name>
  <description>
    A test plugin to assist testing of Maven core.
  </description>
  <inceptionYear>2009</inceptionYear>

  <distributionManagement>

  <modelVersion>4.0.0</modelVersion>

  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-plugin-plugin</artifactId>
  <version>0.1</version>
  <packaging>maven-plugin</packaging>

  <name>Maven Integration Test Plugin</name>
  <description>
    A test plugin to assist testing of Maven core.
  </description>
  <inceptionYear>2009</inceptionYear>

  <distributionManagement>

org.apache.maven.plugin.coreit; public synchronized class ItMojo extends org.apache.maven.plugin.AbstractMojo { public void ItMojo(); public void execute(); } pom.xml 4.0.0 org.apache.maven.its.plugins maven-it-plugin 0.1 maven-plugin Maven Integration Test Plugin A test plugin to assist testing of Maven core. 2009 maven-core-it file:///${basedir}/repo true true org.apache.maven maven-plugin-api 2.0 . pom.xml src/** src/main/resources src/main/java/org/apache/maven/plugins/coreit/AMojo.java src/main/java/...

<project>
    <modelVersion>4.0.0</modelVersion>
    <groupId>tests.project</groupId>
    <artifactId>duplicate-plugin-defs-merged</artifactId>
    <version>1</version>

    <build>
      <plugins>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <dependencies>
            <dependency>
              <groupId>group</groupId>
              <artifactId>first</artifactId>
              <version>1</version>

maven-clean-plugin 2.0-rc2-SNAPSHOT maven-compiler-plugin 2.0-beta-2-SNAPSHOT maven-deploy-plugin 2.0-beta-1 true true maven-install-plugin 2.0-beta-2-SNAPSHOT maven-jar-plugin 2.0-rc2-SNAPSHOT maven-javadoc-plugin 2.0-beta-2-SNAPSHOT attach-javadocs jar true maven-resources-plugin 2.0-beta-2 maven-source-plugin 2.0-rc1 attach-sources jar true maven-surefire-plugin 2.0-beta-2-SNAPSHOT false snapshots Maven Central Development Repository http://snapshots.maven.codehaus.org/maven2 false central Maven Repository Switchboard...

KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.
-->

<plugin>
  <description>Maven Internal State-Management Plugins</description>
  <groupId>org.apache.maven.plugins.internal</groupId>
  <artifactId>maven-state-management</artifactId>
  <version>2.1</version>
  <goalPrefix>statemgmt</goalPrefix>
  <isolatedRealm>false</isolatedRealm>

  <modelVersion>4.0.0</modelVersion>

  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-compiler-plugin</artifactId>
  <version>0.1</version>
  <packaging>maven-plugin</packaging>

  <name>Maven Integration Test Plugin</name>
  <description>
    A test plugin to assist testing of Maven core.
  </description>
  <inceptionYear>2009</inceptionYear>

  <modelVersion>4.0.0</modelVersion>

  <groupId>org.apache.maven.its.plugins</groupId>
  <artifactId>maven-it-plugin</artifactId>
  <version>0.1</version>
  <packaging>maven-plugin</packaging>

  <name>Maven Integration Test Plugin</name>
  <description>
    A test plugin to assist testing of Maven core.
  </description>
  <inceptionYear>2009</inceptionYear>

  <distributionManagement>