public static void addParentRequirements(
     Set<RequiredCapability> requirements, MavenProject mavenProject) {
   Artifact parentArtifact = mavenProject.getParentArtifact();
   if (parentArtifact != null) {
     requirements.add(MavenRequiredCapability.createMavenParent(new ArtifactKey(parentArtifact)));
   }
 }
  @Override
  public void resolveProjectDependencies(
      final IMavenProjectFacade facade,
      Set<Capability> capabilities,
      Set<RequiredCapability> requirements,
      final IProgressMonitor monitor)
      throws CoreException {
    long start = System.currentTimeMillis();
    log.debug("Resolving dependencies for {}", facade.toString()); // $NON-NLS-1$

    markerManager.deleteMarkers(facade.getPom(), IMavenConstants.MARKER_DEPENDENCY_ID);

    ProjectBuildingRequest configuration =
        getMaven().getExecutionContext().newProjectBuildingRequest();
    configuration.setProject(facade.getMavenProject()); // TODO do we need this?
    configuration.setResolveDependencies(true);
    MavenExecutionResult mavenResult =
        getMaven().readMavenProject(facade.getPomFile(), configuration);

    markerManager.addMarkers(facade.getPom(), IMavenConstants.MARKER_DEPENDENCY_ID, mavenResult);

    if (!facade.getResolverConfiguration().shouldResolveWorkspaceProjects()) {
      return;
    }

    MavenProject mavenProject = facade.getMavenProject();

    // dependencies

    // resolved dependencies
    for (Artifact artifact : mavenProject.getArtifacts()) {
      requirements.add(
          MavenRequiredCapability.createMavenArtifact(
              new ArtifactKey(artifact), artifact.getScope(), artifact.isOptional()));
    }

    // extension plugins (affect packaging type calculation)
    for (Plugin plugin : mavenProject.getBuildPlugins()) {
      if (plugin.isExtensions()) {
        ArtifactKey artifactKey =
            new ArtifactKey(plugin.getGroupId(), plugin.getArtifactId(), plugin.getVersion(), null);
        requirements.add(
            MavenRequiredCapability.createMavenArtifact(
                artifactKey, "plugin", false)); // $NON-NLS-1$
      }
    }

    // missing dependencies
    DependencyResolutionResult resolutionResult = mavenResult.getDependencyResolutionResult();
    if (resolutionResult != null && resolutionResult.getUnresolvedDependencies() != null) {
      for (Dependency dependency : resolutionResult.getUnresolvedDependencies()) {
        org.eclipse.aether.artifact.Artifact artifact = dependency.getArtifact();
        ArtifactKey dependencyKey =
            new ArtifactKey(
                artifact.getGroupId(), artifact.getArtifactId(), artifact.getVersion(), null);
        requirements.add(
            MavenRequiredCapability.createMavenArtifact(
                dependencyKey, dependency.getScope(), dependency.isOptional()));
      }
    }

    log.debug(
        "Resolved dependencies for {} in {} ms",
        facade.toString(),
        System.currentTimeMillis() - start); // $NON-NLS-1$
  }