// pluginArtifacts
            Set<Artifact> pluginArtifacts = new HashSet<>();
            for (Plugin plugin : project.getModel().getDelegate().getBuild().getPlugins()) {
                Artifact artifact = repositorySystem.createPluginArtifact(new org.apache.maven.model.Plugin(plugin));

                if (artifact != null) {
                    pluginArtifacts.add(artifact);
                }
            }

    /**
     * Returns a filter for core + extension artifacts.
     *
     * @return the artifact filter
     * @deprecated use {@code META-INF/maven/extension.xml} to define artifacts exported by Maven core and plugin
     *             extensions.
     */
    @Deprecated
    ArtifactFilter getArtifactFilter();

    /**
     * Returns a filter for only the core artifacts.
     *
     * @return the artifact filter

import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;

/**
 * Opinionated plugin that generates the release notes for a Gradle release.
 *
 * TODO: Maybe eventually convert this asciidoc too, so everything uses the same markup language.
 */
public class GradleReleaseNotesPlugin implements Plugin<Project> {
    @Override
    public void apply(Project project) {
        ProjectLayout layout = project.getLayout();

import org.apache.maven.impl.AbstractSession;
import org.apache.maven.impl.DefaultRemoteRepository;
import org.apache.maven.impl.PropertiesAsMap;
import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.plugin.descriptor.MojoDescriptor;
import org.apache.maven.plugin.descriptor.PluginDescriptor;
import org.apache.maven.project.MavenProject;
import org.apache.maven.rtinfo.RuntimeInformation;
import org.eclipse.aether.RepositorySystem;

        MavenProject p1 = new MavenProject();
        p1.setGroupId("g");
        p1.setArtifactId("p1");
        p1.getBuild().getPlugins().add(new Plugin(org.apache.maven.api.model.Plugin.newBuilder()
                .groupId("g").artifactId("p2")
                .
                .build()))
        MavenProject p2 = new MavenProject();
        p2.setGroupId("g");

  <groupId>com.example.group</groupId>
  <artifactId>testinvalidpom</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId></groupId>
          <artifactId/>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>

    "functionalTests": true,
    "crossVersionTests": false
  },
  {
    "name": "plugin-development",
    "path": "platforms/extensibility/plugin-development",
    "unitTests": true,
    "functionalTests": true,
    "crossVersionTests": true
  },
  {
    "name": "plugin-use",
    "path": "platforms/extensibility/plugin-use",
    "unitTests": true,
    "functionalTests": true,

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.plugin;

import org.apache.maven.api.annotations.ThreadSafe;
import org.apache.maven.plugin.logging.Log;

/**
 * This interface forms the contract required for <code>Mojos</code> to interact with the <code>Maven</code>
 * infrastructure.<br>

 * under the License.
 */
package org.apache.maven.execution.scope.internal;

import com.google.inject.AbstractModule;
import org.apache.maven.api.plugin.Log;
import org.apache.maven.execution.scope.MojoExecutionScoped;
import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.project.MavenProject;

/**
 * MojoExecutionScopeModule
 */
public class MojoExecutionScopeModule extends AbstractModule {

        @Override
        public Object key(ReportPlugin plugin) {
            return getReportPluginKey(plugin);
        }
    }

    /**
     * KeyComputer for Plugin
     */
    private class PluginKeyComputer implements KeyComputer<Plugin> {
        @Override
        public Object key(Plugin plugin) {
            return getPluginKey(plugin);
        }
    }

    /**