if (inactiveProfileIds == null) {
            inactiveProfileIds = new ArrayList<>();
        }

        return inactiveProfileIds;
    }

    @Override
    public DefaultModelBuildingRequest setInactiveProfileIds(List<String> inactiveProfileIds) {
        if (inactiveProfileIds != null) {
            this.inactiveProfileIds = new ArrayList<>(inactiveProfileIds);
        } else {

        if (inactiveProfileIds != null) {
            this.inactiveProfileIds = Collections.unmodifiableList(inactiveProfileIds);
        } else {
            this.inactiveProfileIds = Collections.emptyList();
        }

        return this;
    }

    @Override
    public Map<String, String> getSystemProperties() {
        return systemProperties;
    }

            this.activeProfileIds = activeProfileIds;
            return this;
        }

        public ModelBuilderRequestBuilder inactiveProfileIds(List<String> inactiveProfileIds) {
            this.inactiveProfileIds = inactiveProfileIds;
            return this;
        }

        public ModelBuilderRequestBuilder systemProperties(Map<String, String> systemProperties) {

     * Sets the identifiers of those profiles that should be deactivated by explicit demand.
     *
     * @param inactiveProfileIds The identifiers of those profiles to deactivate, may be {@code null}.
     * @return This request, never {@code null}.
     */
    ModelBuildingRequest setInactiveProfileIds(List<String> inactiveProfileIds);

    /**

import static java.util.Objects.requireNonNull;

/**
 * Request used to build a {@link org.apache.maven.api.Project} using
 * the {@link ProjectBuilder} service.
 *
 * TODO: add validationLevel, activeProfileIds, inactiveProfileIds, resolveDependencies
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface ProjectBuilderRequest extends RepositoryAwareRequest {

    /**
     * Gets the path to the project to build.