java -jar kawa-1.6.98.jar --xquery: nested document

[Morten Primdahl]

Hi. First of all, if I'm not in the right forum, please
let me know where it can be found.

I've been playing around with the Kawa XQuery implementation,
it's very nice. I'm getting an odd exception though, that
I'm hoping someone can clarify to me:

xquery[7]: document("data.xml")//title
java.lang.Error: nested document
	at gnu.lists.TreeList.beginDocument(TreeList.java:448)
	at gnu.xml.ParsedXMLToConsumer.parse(ParsedXMLToConsumer.java:23)
	at gnu.kawa.xml.Document.apply(Document.java:63)
	at gnu.mapping.CallContext.runUntilDone(CallContext.java:239)
	at gnu.mapping.CallContext.runUntilValue(CallContext.java:253)
	at atInteractiveLevel.apply(Unknown Source)
	at gnu.mapping.CallContext.runUntilDone(CallContext.java:239)
	at gnu.expr.ModuleExp.evalModule(ModuleExp.java:189)
	at kawa.Shell.run(Shell.java:231)
	at kawa.Shell.run(Shell.java:180)
	at kawa.Shell.run(Shell.java:167)
	at kawa.Shell.run(Shell.java:154)
	at kawa.repl.main(repl.java:561)

What is meant by "nested document"? My document is a well-formed XML
document.

Thank you.

Morten