}

            Parent parent = project.getModel().getDelegate().getParent();

            if (parent != null) {
                // Parent is added as an edge, but must not cause a cycle - so we remove any other edges it has
                // in conflict
                addEdge(
                        projectMap,
                        vertexMap,
                        null,

@Named
@Singleton
public class DefaultPluginManagementInjector implements PluginManagementInjector {

    private ManagementModelMerger merger = new ManagementModelMerger();

    @Override
    public Model injectManagement(Model model, ModelBuilderRequest request, ModelProblemCollector problems) {
        return merger.mergeManagedBuildPlugins(model);
    }

    /**
     * ManagementModelMerger
     */

import org.apache.maven.api.model.RepositoryBase;
import org.apache.maven.api.model.Scm;
import org.apache.maven.api.model.Site;
import org.apache.maven.model.v4.MavenMerger;

/**
 * The domain-specific model merger for the Maven POM, overriding generic code from parent class when necessary with
 * more adapted algorithms.
 *
 */
public class MavenModelMerger extends MavenMerger {

    /**

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

/**
 *  MetadataGraph edge selection policy. Complements
 *  GraphConflictResolver by being injected into it
 *
 *
 */
@Deprecated
public interface GraphConflictResolutionPolicy {
    String ROLE = GraphConflictResolutionPolicy.class.getName();

                    .build(Build.newBuilder().plugins(plugins).build())
                    .build();
            model.update(merger.merge(model.getDelegate(), lifecycleModel));
        }
    }

    /**
     *  The domain-specific model merger for lifecycle bindings
     */
    protected static class LifecycleBindingsMerger extends MavenModelMerger {

              <models>
                <model>src/main/mdo/settings.mdo</model>
              </models>
              <templates>
                <template>merger.vm</template>
                <template>transformer.vm</template>
                <template>reader-stax.vm</template>
                <template>writer-stax.vm</template>
              </templates>
              <params>

    private MetadataGraphEdge cleanEdges(
            MetadataGraphVertex v, List<MetadataGraphEdge> edges, ArtifactScopeEnum scope) {
        if (edges == null || edges.isEmpty()) {
            return null;
        }

        if (edges.size() == 1) {
            MetadataGraphEdge e = edges.get(0);
            if (scope.encloses(e.getScope())) {
                return e;
            }

 *
 */
@Named
@Singleton
public class DefaultLifecycleBindingsInjector implements LifecycleBindingsInjector {

    private final LifecycleBindingsMerger merger = new LifecycleBindingsMerger();

    private final LifecycleRegistry lifecycleRegistry;
    private final PackagingRegistry packagingRegistry;

    @Inject

@Singleton
public class DefaultDependencyManagementInjector implements DependencyManagementInjector {

    private ManagementModelMerger merger = new ManagementModelMerger();

    @Override
    public Model injectManagement(Model model, ModelBuilderRequest request, ModelProblemCollector problems) {
        return merger.mergeManagedDependencies(model);
    }

    /**
     * ManagementModelMerger
     */

    private static final String CHILD_DIRECTORY = "child-directory";

    private static final String CHILD_DIRECTORY_PROPERTY = "project.directory";

    private final InheritanceModelMerger merger = new InheritanceModelMerger();

    @Override
    public Model assembleModelInheritance(
            Model child, Model parent, ModelBuilderRequest request, ModelProblemCollector problems) {