[jdom-interest] promoting namespaces up trees

[Bart Locanthi]

i've been expending too much cleverness to solve this problem and i'm
wondering if there's a better way.

i have generated data that looks like

<item>
  <x:foo xmlns:x="blah blah"/>
  <x:bar xmlns:x="blah blah"/>
  ...
</item>

i of course want it to look like

<item xmlns:x="blah blah">
  <x:foo/>
  <x:bar/>
  ...
</item>

i've played games with pre-pushed Namespace.Stacks, but you wind up
having to print the header by hand because the codeto do this inside
XMLOutputter isn't factored or exposed.

is there a simple way of getting the desired result?