For example, we might have an infoset that looks like this:

<foo xmlns="example.com">

  <bar>...</bar>

</foo>

When received from the XMLReader, bar has a qname of "example.com", even though it is not explicit provided via a prefix, because xmlns is "example.com". However, the NextElementResolver expects bar to not have any qname. So it fails saying it expected {}bar, but found

bar.