}

    @Override
    public ModelSource getModelSource() {
        return request.getModelSource();
    }

    @Override
    public FilterModelBuildingRequest setModelSource(ModelSource modelSource) {
        request.setModelSource(modelSource);

        return this;
    }

    @Override
    public int getValidationLevel() {
        return request.getValidationLevel();
    }

    @Override

     *
     * @param request The request to copy, must not be {@code null}.
     */
    public DefaultModelBuildingRequest(ModelBuildingRequest request) {
        setPomFile(request.getPomFile());
        setModelSource(request.getModelSource());
        setValidationLevel(request.getValidationLevel());
        setProcessPlugins(request.isProcessPlugins());
        setTwoPhaseBuilding(request.isTwoPhaseBuilding());

        ModelBuilder builder = new DefaultModelBuilderFactory().newInstance();
        assertNotNull(builder);

        DefaultModelBuildingRequest request = new DefaultModelBuildingRequest();
        request.setModelSource(new StringModelSource(BASE1));
        request.setModelResolver(new CycleInImportsResolver());

        assertThrows(ModelBuildingException.class, () -> builder.build(request));
    }