authorMapper,
keywordsMapper,
contentTypeMapper,
contentLengthMapper,
languageMapper);
<BUG>return Iterators.concat(super.iterator(), extras.iterator());
</BUG>
}
@Override
public void close() {

authorMapper,
keywordsMapper,
contentTypeMapper,
contentLengthMapper,
languageMapper);
return CollectionUtils.concat(super.iterator(), extras.iterator());
}
@Override
public void close() {
