*/
    @Nonnull
    default Builder toBuilder() {
        try {
            return new Builder(
                    getUserProperties(), getSystemProperties(), getStartTime(), getTopDirectory(), getRootDirectory());
        } catch (IllegalStateException e) {
            return new Builder(getUserProperties(), getSystemProperties(), getStartTime(), getTopDirectory(), null);
        }
    }

    /**

 */
@Deprecated
public interface ProjectBuilderConfiguration {

    ArtifactRepository getLocalRepository();

    ProfileManager getGlobalProfileManager();

    Properties getUserProperties();

    Properties getExecutionProperties();

    ProjectBuilderConfiguration setGlobalProfileManager(ProfileManager globalProfileManager);

        settingsRequest.setProjectSettingsFile(request.getProjectSettingsFile());
        settingsRequest.setGlobalSettingsFile(request.getGlobalSettingsFile());
        settingsRequest.setUserProperties(request.getUserProperties());
        settingsRequest.setSystemProperties(request.getSystemProperties());

        return build(settingsRequest);
    }

    @Override
    public ProjectBuilderConfiguration setUserProperties(Properties userProperties) {
        this.userProperties = userProperties;
        return this;
    }

    @Override
    public Properties getUserProperties() {
        if (userProperties == null) {
            userProperties = new Properties();
        }

        return userProperties;
    }

    @Override
    public Properties getExecutionProperties() {

     * @return The user properties with contributions.
     */
    default Map<String, String> contribute(ProtoSession protoSession) {
        HashMap<String, String> userProperties = new HashMap<>(protoSession.getUserProperties());
        contribute(userProperties);
        return userProperties;
    }