return this;
    }

    @Override
    public Map<String, String> getProjectProperties() {
        return projectProperties;
    }

    public DefaultProfileActivationContext setProjectProperties(Properties projectProperties) {
        if (projectProperties != null) {
            this.projectProperties = projectProperties.entrySet().stream()
                    .collect(collectingAndThen(

            problems.setSource(tmpModel);

            // model normalization
            modelNormalizer.mergeDuplicates(tmpModel, request, problems);

            profileActivationContext.setProjectProperties(tmpModel.getProperties());

            List<Profile> interpolatedProfiles = getInterpolatedProfiles(rawModel, profileActivationContext, problems);
            tmpModel.setProfiles(interpolatedProfiles);