private List<Exception> collectionErrors = new ArrayList<>();

    private Map<Dependency, List<Exception>> resolutionErrors = new IdentityHashMap<>();

    @Override
    public DependencyNode getDependencyGraph() {
        return root;
    }

    public void setDependencyGraph(DependencyNode root) {
        this.root = root;
    }

    @Override
    public List<Dependency> getDependencies() {

public interface DependencyResolutionResult {

    /**
     * Gets the dependency graph of the project.
     *
     * @return The dependency graph or {@code null} if not available.
     */
    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

                            .map(r -> new DefaultDependencyResolverResult(
                                    null, r.getCollectionErrors(), session.getNode(r.getDependencyGraph()), 0));
                }
            };
        } catch (ProjectBuildingException e) {
            throw new ProjectBuilderException("Unable to build project", e);
        } finally {

            }

            Set<Artifact> artifacts = new LinkedHashSet<>();
            if (resolutionResult.getDependencyGraph() != null) {
                RepositoryUtils.toArtifacts(
                        artifacts,
                        resolutionResult.getDependencyGraph().getChildren(),
                        Collections.singletonList(project.getArtifact().getId()),
                        null);