Optional<Project> getParent();

    /**
     * Returns all profiles defined in this project.
     * <p>
     * This method returns only the profiles defined directly in the current project's POM
     * and does not include profiles from parent projects.
     *
     * @return a non-null, possibly empty list of profiles defined in this project
     * @see Profile
     * @see #getEffectiveProfiles()
     */
    @Nonnull

                            "profiles.profile.id",
                            null,
                            "must be unique but found duplicate profile with id " + profile.getId());
                }

                String prefix = "profiles.profile[" + profile.getId() + "].";

                validateRepositories(problems, profile.getRepositories(), prefix + "repositories.repository");

     *         not refer to a known model.
     */
    List<Profile> getActivePomProfiles(String modelId);

    /**
     * Gets the external profiles that were active during model building. External profiles are those that were
     * contributed by {@link ModelBuildingRequest#getProfiles()}.
     *

   | Finally, the list of active profiles can be specified directly from the command line.
   |
   | NOTE: For profiles defined in the settings.xml, you are restricted to specifying only artifact
   |       repositories, plugin repositories, and free-form properties to be used as configuration
   |       variables for plugins in the POM.
   |
   |-->
  <profiles>

    }

    @Override
    public List<Profile> getProfiles() {
        if (profiles == null) {
            profiles = new ArrayList<>();
        }
        return profiles;
    }

    @Override
    public MavenExecutionRequest setProfiles(List<Profile> profiles) {
        if (profiles != null) {
            this.profiles = new ArrayList<>(profiles);
        } else {
            this.profiles = null;

    /**
     * Gets the identifiers of those profiles that should be activated by explicit demand.
     *
     * @return The identifiers of those profiles to activate, never {@code null}.
     */
    List<String> getActiveProfileIds();

    /**
     * Gets the identifiers of those profiles that should be deactivated by explicit demand.
     *
     * @return The identifiers of those profiles to deactivate, never {@code null}.
     */

    // Profiles
    List<Profile> getProfiles();

    MavenExecutionRequest addProfile(Profile profile);

    MavenExecutionRequest setProfiles(List<Profile> profiles);

    /**
     * @deprecated Since Maven 4: use {@link #getProfileActivation()}.
     */
    @Deprecated
    MavenExecutionRequest addActiveProfile(String profile);

    /**

        <plugins>
          <plugin>
            <groupId>profile</groupId>
            <artifactId>duplicate</artifactId>
          </plugin>
          <plugin>
            <groupId>profile</groupId>
            <artifactId>duplicate</artifactId>
          </plugin>
        </plugins>
      </build>
    </profile>
  </profiles>

    @Override
    public List<String> getActiveProfileIds() {
        return activeProfileIds;
    }

    /**
     * Sets the identifiers of those profiles that should be activated by explicit demand.
     *
     * @param activeProfileIds The identifiers of those profiles to activate, may be {@code null}.
     * @return This context, never {@code null}.
     */

/**
 * Tests {@link DefaultProfileSelector}.
 */
@Deprecated
public class DefaultProfileSelectorTest {
    private Profile newProfile(String id) {
        Activation activation = new Activation();
        Profile profile = new Profile();
        profile.setId(id);
        profile.setActivation(activation);
        return profile;
    }

    @Test
    void testThrowingActivator() {