SnapshotHierarchy updateVfsBeforeAfterFinished(SnapshotHierarchy root);

    /**
     * The files actually being watched right now.
     *
     * @see FileWatcherUpdater
     */
    FileHierarchySet getWatchedFiles();

            createInvalidator()
        );

        if (root != newRoot) {
            update(newRoot);
        }
        return newRoot;
    }

    @Override
    public FileHierarchySet getWatchedFiles() {
        return watchedFiles;
    }

    @Override
    public void triggerWatchProbe(String path) {
        probeRegistry.triggerWatchProbe(path);
    }