List<Element> plugins = pluginsElement.children(PLUGIN).toList();
        Map<String, Element> seenPlugins = new HashMap<>();

        List<Element> duplicates = plugins.stream()
                .filter(plugin -> {
                    String key = createPluginKey(plugin);
                    if (key != null) {

import org.apache.maven.plugin.InvalidPluginDescriptorException;
import org.apache.maven.plugin.MojoNotFoundException;
import org.apache.maven.plugin.PluginDescriptorParsingException;
import org.apache.maven.plugin.PluginNotFoundException;
import org.apache.maven.plugin.PluginResolutionException;
import org.apache.maven.plugin.prefix.NoPluginFoundForPrefixException;
import org.apache.maven.plugin.version.PluginVersionResolutionException;

     */
    boolean isRecursive();

    /**
     * Determines whether plugins should be processed during project building.
     * When true, the builder will process plugin information which may include
     * resolving plugin dependencies and executing plugin goals that participate in project building.
     *
     * @return true if plugins should be processed, false otherwise
     */
    boolean isProcessPlugins();

    /**

import org.apache.maven.api.plugin.descriptor.MojoDescriptor;
import org.apache.maven.api.xml.XmlNode;

/**
 * A {@code MojoExecution} represents a single execution of a Maven Plugin during a given build.
 * An instance of this object is bound to the {@link org.apache.maven.api.di.MojoExecutionScoped}
 * and available as {@code mojoExecution} within {@link org.apache.maven.api.plugin.annotations.Parameter}
 * expressions.
 *

 */
package org.apache.maven.lifecycle;

import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.project.MavenProject;

/**
 * <p>
 * A MojoExecutionConfigurator is responsible for creating the configuration for Mojo based on configuration for a Mojo
 * in the MavenProject and the default configuration for the Mojo from the containing plugin's plugin.xml descriptor.
 * </p>

            if (build != null) {
                for (Plugin plugin : build.getPlugins()) {
                    addEdge(
                            projectMap,
                            vertexMap,
                            project,
                            projectVertex,
                            plugin.getGroupId(),
                            plugin.getArtifactId(),
                            plugin.getVersion(),

            /* TODO: Enhance the PluginDependenciesResolver to provide a
             * resolveCoreExtension method which uses a CoreExtension
             * object instead of a Plugin as this makes no sense.
             */
            Plugin plugin = Plugin.newBuilder()
                    .groupId(interpolator.apply(extension.getGroupId()))
                    .artifactId(interpolator.apply(extension.getArtifactId()))

  <artifactId>testinvalidpom</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId></groupId>
          <artifactId>this-is-the-artifact</artifactId>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.plugin.internal;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import org.apache.maven.plugin.MavenPluginPrerequisitesChecker;
import org.apache.maven.plugin.descriptor.PluginDescriptor;
import org.apache.maven.rtinfo.RuntimeInformation;
import org.slf4j.Logger;

        pluginIds
            .map { pluginId ->
                val metadataUrl = "https://plugins.gradle.org/m2/${pluginId.replace('.', '/')}/$pluginId.gradle.plugin/maven-metadata.xml"
                val latest = fetchVersionsFromMavenMetadata(metadataUrl)
                    .maxByOrNull { VersionNumber.parse(it) }
                    ?: error("No version found for plugin $pluginId")

                TestedVersion(pluginId, latest)