Github user afs commented on the issue:
https://github.com/apache/jena/pull/338
@Claudenw may have an opinion about `ConcatenatedIterator`.
Otherwise, is this the list of classes to go (machien extracted)? This list
could go on the JIRA "for the record":
```
org.apache.jena.atlas.iterator.Action
org.apache.jena.atlas.iterator.Filter
org.apache.jena.atlas.iterator.IteratorArray
org.apache.jena.atlas.iterator.Transform
org.apache.jena.atlas.lib.ActionKeyValue
org.apache.jena.atlas.iterator.TestIteratorArray
org.apache.jena.util.iterator.ArrayIterator
org.apache.jena.util.iterator.ConcatenatedIterator
org.apache.jena.util.iterator.Filter
org.apache.jena.util.iterator.IteratorIterator
org.apache.jena.util.iterator.Map1
```
---
