I must admit you have a point there.
I probably took a shortcut in order to get a point across in the least number of words. For those who do know about CASTOR, just a mere sentence would ring enough bells to get the meaning acroos. For those who don't, there is now enough information in this thread I think.
'Revolutionary' deson't necessarily mean excellent or good. That's not for me to judge anyway. Revolutionary just means that there is an abrubt change in the way things work.
In this respect, I tend to stick to my idea. The reason is that XML::Pastor introduces a whole new way of dealing with XML by generating native Perl classes starting from a W3C XSD schema. The resulting objects are even easier to manipulate than what results from XML::Simple on one hand. Furthermore, writing back to XML conformant to the original schema is taken care of.
If you require more information, I would suggest that you check out the documentation of XML::Pastor or even download it and play with it.
By the way, without being too critical, I would like to say that I try to keep myself up to date on what's going on out there even when it's not related to Perl. It doesn't mean I like Java per se, but it means I would like to be open-minded to new ideas.