request.setModelBuildingListener(modelBuildingListener);

        return this;
    }

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

    @Override
    public FilterModelBuildingRequest setModelCache(ModelCache modelCache) {
        request.setModelCache(modelCache);

        return this;
    }

    Map<String, String> getUserProperties();

    @Nonnull
    ModelResolver getModelResolver();

    @Nonnull
    ModelRepositoryHolder getModelRepositoryHolder();

    @Nullable
    ModelCache getModelCache();

    @Nullable
    Object getListener();

    @Nullable
    ModelBuilderResult getInterimResult();

    @Nullable
    ModelTransformerContextBuilder getTransformerContextBuilder();

        setBuildStartTime(request.getBuildStartTime());
        setModelResolver(request.getModelResolver());
        setModelBuildingListener(request.getModelBuildingListener());
        setModelCache(request.getModelCache());
        setWorkspaceModelResolver(request.getWorkspaceModelResolver());
        setTransformerContextBuilder(request.getTransformerContextBuilder());
        setRootDirectory(request.getRootDirectory());
    }

 * construction of MavenProject instances without the need to have parent POM(s) available from local or remote
 * repositories.
 * <p>
 * ModelSource2 instances are cached in {@link ModelBuildingRequest#getModelCache()}. Implementations must guarantee
 * that the connection to the backing store remains active until request's {@link ModelCache} is discarded or flushed.
 */
public interface ModelSource2 extends ModelSource {
    /**

        return problems.hasFatalErrors();
    }

    ModelProcessor getModelProcessor() {
        return modelProcessor;
    }

    private static ModelCache getModelCache(ModelBuilderRequest request) {
        return request.getModelCache();
    }

    private static ModelBuildingListener getModelBuildingListener(ModelBuilderRequest request) {
        return (ModelBuildingListener) request.getListener();
    }

            throws ModelBuildingException {
        ModelSource modelSource = request.getModelSource();
        org.apache.maven.api.model.Model model = cache(
                request.getModelCache(),
                modelSource,
                ModelCacheTag.FILE,
                () -> doReadFileModel(modelSource, request, problems));

        if (modelSource instanceof FileModelSource) {

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

    /**
     * Sets the model cache to use for reuse of previously built models. This is an optional component that serves
     * performance optimizations.
     *