@Override
    public Map<String, String> getMetadata(final Path file) throws BackgroundException {
        return new S3AttributesFinderFeature(session, acl).find(file).getMetadata();
    }
@Test
    public void testGetMetadataBucket() throws Exception {
        final Path container = new Path("test-eu-central-1-cyberduck", EnumSet.of(Path.Type.volume, Path.Type.directory));
        final Map<String, String> metadata = new S3MetadataFeature(session, new S3AccessControlListFeature(session)).getMetadata(container);
        assertTrue(metadata.isEmpty());
    }