MavenExecutionRequest request)
            throws MavenExecutionException {
        List<MavenProject> result = projects;

        ProjectActivation projectActivation = request.getProjectActivation();

        Set<String> requiredSelectors = projectActivation.getRequiredActiveProjectSelectors();
        Set<String> optionalSelectors = projectActivation.getOptionalActiveProjectSelectors();

    String getReactorFailureBehavior();

    /**
     * @deprecated Since Maven 4: use {@link #getProjectActivation()}.
     */
    @Deprecated
    MavenExecutionRequest setSelectedProjects(List<String> projects);

    /**
     * @deprecated Since Maven 4: use {@link #getProjectActivation()}.
     */
    @Deprecated
    List<String> getSelectedProjects();

    /**

        parameterInactiveOptionalProjects.forEach(projectActivation::deactivateOptionalProject);

        when(mavenExecutionRequest.getRootDirectory()).thenReturn(Paths.get("."));
        when(mavenExecutionRequest.getProjectActivation()).thenReturn(projectActivation);
        when(mavenExecutionRequest.getMakeBehavior()).thenReturn(parameterMakeBehavior);
        when(mavenExecutionRequest.getPom()).thenReturn(parameterRequestedPom);

            this.profileActivation.overwriteInactiveProfiles(inactiveProfiles);
        }

        return this;
    }

    @Override
    public ProjectActivation getProjectActivation() {
        return this.projectActivation;
    }

    @Override
    public ProfileActivation getProfileActivation() {
        return this.profileActivation;
    }

    @Override

        }

        request.setIgnoreTransitiveRepositories(
                context.options().ignoreTransitiveRepositories().orElse(false));

        performProjectActivation(context, request.getProjectActivation());
        performProfileActivation(context, request.getProfileActivation());

        //
        // Builder, concurrency and parallelism
        //

     * @param session the {@link MavenSession}.
     */
    private void validateOptionalProjects(MavenExecutionRequest request, MavenSession session) {
        final ProjectActivation projectActivation = request.getProjectActivation();
        final Set<String> allOptionalSelectors = new HashSet<>();
        allOptionalSelectors.addAll(projectActivation.getOptionalActiveProjectSelectors());