}

    @Override
    public Optional<MetadataSnapshot> getSnapshot(VfsRelativePath relativePath, CaseSensitivity caseSensitivity) {
        return getChildSnapshot(relativePath, caseSensitivity);
    }

    protected Optional<MetadataSnapshot> getChildSnapshot(VfsRelativePath relativePath, CaseSensitivity caseSensitivity) {
        return Optional.of(missingSnapshotForAbsolutePath(relativePath.getAbsolutePath()));
    }

        return children.stream()
            .map(ChildMap.Entry::getValue)
            .collect(ImmutableList.toImmutableList());
    }

    @Override
    protected Optional<MetadataSnapshot> getChildSnapshot(VfsRelativePath targetPath, CaseSensitivity caseSensitivity) {
        return Optional.of(
            SnapshotUtil.getMetadataFromChildren(children, targetPath, caseSensitivity, Optional::empty)