finalConfigProperties.putAll(mergedProps);
        finalConfigProperties.putAll(configProps);

        sessionBuilder.setUserProperties(request.getUserProperties());
        sessionBuilder.setSystemProperties(request.getSystemProperties());
        sessionBuilder.setConfigProperties(finalConfigProperties);

        return sessionBuilder;
    }

        Interpolator interpolator = new DefaultInterpolator();
        UnaryOperator<String> callback = v -> {
            String r = request.getUserProperties().getProperty(v);
            if (r == null) {
                r = request.getSystemProperties().getProperty(v);
            }
            return r != null ? r : v;
        };

        }
    }

    private UnaryOperator<String> createInterpolator(MavenExecutionRequest request) {
        UnaryOperator<String> callback = v -> {
            String r = request.getUserProperties().getProperty(v);
            if (r == null) {
                r = request.getSystemProperties().getProperty(v);
            }
            return r != null ? r : v;
        };

        request.session(iSession);
        request.source(src);
        request.locationTracking(false);
        request.systemProperties(session.getSystemProperties());
        request.userProperties(session.getUserProperties());
        request.lifecycleBindingsInjector(lifecycleBindingsInjector::injectLifecycleBindings);
        ModelBuilder.ModelBuilderSession mbSession =