/**
     * Remove everything from the root which can't be kept after the current build finished.
     *
     * @see FileWatcherRegistry#updateVfsBeforeBuildFinished(SnapshotHierarchy, int, List)
     */
    @CheckReturnValue
    SnapshotHierarchy updateVfsBeforeBuildFinished(SnapshotHierarchy root, int maximumNumberOfWatchedHierarchies, List<File> unsupportedFileSystems);

    /**

                return hasSnapshotsToWatch;
            }
        });
    }

    @Override
    public SnapshotHierarchy updateVfsBeforeBuildFinished(SnapshotHierarchy root, int maximumNumberOfWatchedHierarchies, List<File> unsupportedFileSystems) {
        SnapshotHierarchy newRoot = super.updateVfsBeforeBuildFinished(root, maximumNumberOfWatchedHierarchies, unsupportedFileSystems);
        LOGGER.info("Watched directory hierarchies: {}", watchedHierarchies);

     *
     * @return the snapshot hierarchy without snapshots which can't be kept till the next build.
     */
    @CheckReturnValue
    SnapshotHierarchy updateVfsBeforeBuildFinished(SnapshotHierarchy root, int maximumNumberOfWatchedHierarchies, List<File> unsupportedFileSystems);

    /**
     * Updates the VFS and the watchers after the build finished.
     *

    @Override
    public SnapshotHierarchy updateVfsBeforeBuildFinished(SnapshotHierarchy root, int maximumNumberOfWatchedHierarchies, List<File> unsupportedFileSystems) {
        SnapshotHierarchy newRoot = watchableHierarchies.removeUnwatchableContentBeforeBuildFinished(
            root,