*
 * @since 4.0.0
 */
@Experimental
public interface DependencyCollector extends Service {

    /**
     * Collects the transitive dependencies and builds a dependency graph.
     * Note that this operation is only concerned about determining the coordinates of the
     * transitive dependencies and does not actually resolve the artifact files.
     *
     * @param request the dependency collection request, must not be {@code null}

     */
    DependencyNode getDependencyGraph();

    /**
     * Gets the transitive dependencies of the project that were not excluded by
     * {@link DependencyResolutionRequest#getResolutionFilter()}. This list is a union of the results from
     * {@link #getResolvedDependencies()} and {@link #getUnresolvedDependencies()}.
     *
     * @return The transitive dependencies, never {@code null}.
     */
    List<Dependency> getDependencies();

import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * Verifies exclusions listed in dependencyManagement are valid for
 * transitive dependencies.
 *
 */
@Deprecated
class ProjectInheritanceTest extends AbstractProjectInheritanceTestCase {
    // ----------------------------------------------------------------------
    //

     * @param transitive A flag whether to retrieve all direct and indirect downstream projects or just the immediate
     *            downstream projects.
     * @return The downstream projects in the build order, never {@code null}.
     */
    List<MavenProject> getDownstreamProjects(MavenProject project, boolean transitive);

    /**

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

/**
 * Resolves the transitive dependencies of a project.
 *
 */
public interface ProjectDependenciesResolver {

    /**
     * Resolves the transitive dependencies of a project.
     *
     * @param request The resolution request holding the parameters, must not be {@code null}.

    protected DependencyManager getDependencyManager() {
        return getDependencyManager(true); // same default as in Maven4
    }

    public DependencyManager getDependencyManager(boolean transitive) {
        return new ClassicDependencyManager(transitive, getScopeManager());
    }

    protected DependencySelector getDependencySelector() {
        return new AndDependencySelector(
                ScopeDependencySelector.legacy(

        return trail;
    }

    public boolean isResolved() {
        return children != null;
    }

    /**
     * Test whether the node is direct or transitive dependency.
     *
     * @return whether the node is direct or transitive dependency
     */
    public boolean isChildOfRootNode() {
        return parent != null && parent.parent == null;
    }

import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * Verifies scope inheritance of direct and transitive dependencies.
 *
 * Should show three behaviors:
 *
 * 1. dependencyManagement should override the scope of transitive dependencies.
 * 2. Direct dependencies should override the scope of dependencyManagement.
 * 3. Direct dependencies should inherit scope from dependencyManagement when

    private ArtifactFilter resolutionFilter;

    // Needs to go away
    private List<ResolutionListener> listeners = new ArrayList<>();

    // This is like a filter but overrides all transitive versions
    private Map<String, Artifact> managedVersionMap;

    private boolean resolveRoot = true;

    private boolean resolveTransitively = false;

    private boolean offline;

 * of project dependencies. This optimizes module loading during runtime, as we will only load external
 * modules that are not loaded transitively by other project modules.
 *
 * We perform this filtering, since if we simply include all external dependencies, regardless of whether
 * they are already loaded transitively, there is a measurable performance impact during module-loading.