[jdom-interest] XMLOutputter & null pointer exception.

[Wesley Biggs]

<JH>
Now let's decide what we want long term.  What should getText() and
getMixedContent() return for all these?
</JH>

<empty/>
	------------> ""
<empty></empty>
      ------------> ""
setText("")
      ------------> ""
setText(null)
      Should be an error, or if we enable schema support, should generate
xsl:null="true" attribute.

XML specs state that <empty/> is semantically equivalent to <empty></empty>,
which means both represent the empty string.  There is no way, short of
metasemantics like xsl:null, to represent a null case in XML.

Wes