}

    @Override
    public String getReactorFailureBehavior() {
        return reactorFailureBehavior;
    }

    @Override
    public List<String> getSelectedProjects() {
        return this.projectActivation.getSelectedProjects();
    }

    @Override
    public List<String> getExcludedProjects() {
        return this.projectActivation.getExcludedProjects();
    }

    @Override

     * @deprecated Use {@link #getRequiredActiveProjectSelectors()} and {@link #getOptionalActiveProjectSelectors()}
     * instead.
     */
    @Deprecated
    public List<String> getSelectedProjects() {
        return Collections.unmodifiableList(new ArrayList<>(getProjectSelectors(pa -> pa.active)));
    }

    /**
     * Mimics the pre-Maven 4 "excluded projects" list.

    MavenExecutionRequest setSelectedProjects(List<String> projects);

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

    /**
     * @param projects the projects to exclude
     * @return this MavenExecutionRequest
     * @since 3.2
     * @deprecated Since Maven 4: use {@link #getProjectActivation()}.
     */