public ModelBuildingListener getModelBuildingListener() {
        return request.getModelBuildingListener();
    }

    @Override
    public ModelBuildingRequest setModelBuildingListener(ModelBuildingListener modelBuildingListener) {
        request.setModelBuildingListener(modelBuildingListener);

        return this;
    }

    @Override
    public ModelCache getModelCache() {
        return request.getModelCache();

        setUserProperties(request.getUserProperties());
        setBuildStartTime(request.getBuildStartTime());
        setModelResolver(request.getModelResolver());
        setModelBuildingListener(request.getModelBuildingListener());
        setModelCache(request.getModelCache());
    }

    @Override
    public File getPomFile() {
        return pomFile;
    }

    @Override

     *
     * @param modelBuildingListener The model building listener to notify, may be {@code null}.
     * @return This request, never {@code null}.
     */
    ModelBuildingRequest setModelBuildingListener(ModelBuildingListener modelBuildingListener);

    /**
     * Gets the model cache to use for reuse of previously built models.
     *
     * @return The model cache or {@code null} if not set.
     */