[jdom-interest] suggested JDOM2 improvements

[Michael Kay]

 >public XPathCompiled<Object> compile(String xpath);

I started introducing generics for this in Saxon 9.4 and the experience 
wasn't wholly positive; it left a lot of cases where there were warnings 
that needed to be ignored. That may be because I found generics to be 
deeper and more bewildering than I expected.

It's not at all clear to me how your types such as 
XPathCompiled<Element> are supposed to work. Do they rely excessively on 
the ability of the XPath engine to do static type analysis of the 
supplied expression?

Michael Kay
Saxonica