[jdom-interest] Text class (Modified)

[philip.nelson at omniresources.com]

> >public class Text {
> 
> >     public Text(String stringValue) {
> >         value = new StringBuffer(stringValue);
> >     }
> 
> What should we do if stringValue is null? I suggest throwing an 
> immediate NullPointerException.

Yes, it is consistent with what we decided with most of the other setters.
(someday I need to update the tests so they are happy with the decision)

> 
> What should we do if stringValue is empty? Does it make sense to 
> allow an empty text node?

I have no problem with this, it's a quick way to remove the text content.  I
do think the idea to setLength(0) and then use the existing StringBuffer
makes more sense though.