XOM API for Processing XML with Java

[Elliotte Harold <elharo AT metalab.unc.edu>]

Peter Stibrany wrote:
> Hello,
>
> I've found that nu.xom.NamespaceConflictException isn't documented as 
> exception for public Attribute(String name, String URI, String value) 
> constructor. I can receive this exception when I use this sample code:
>
> Attribute a=new Attribute("hello", "http://test";, "value");

This is a corner case. It's clearly wrong. An unprefixed attribute can't 
be in a namespace. XOM should throw an exception here. But which one? 
Currently the JavaDoc documents that this case will throw an 
IllegalNameException, but XOM actually throws a 
NamespaceConflictException. i.e. it reports this as a conflict between 
the empty prefix and the non-empty URI, rather than an illegal name or URI.

Which way to go? I'm not sure. In my investigation I noticed at least 
one other case where the NamespaceConflictException could be thrown: the 
xml prefix with a URI other than http://www.w3.org/XML/1998/namespace. 
Therefore I think I'm just going to better document the current behavior 
(i.e. add an @throws NamespaceConflictException to this method) but not 
change anything else. However, if anyone strongly feels that 
IllegalNameException is what should be thrown here in this case, speak 
up now.

--
Elliotte Rusty Harold  elharo AT metalab.unc.edu
XML in a Nutshell 3rd Edition Just Published!
http://www.cafeconleche.org/books/xian3/
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