[C2] Xalan problem in multi threaded environment

[Sebastien Sahuc <ss...@imediation.com>]

I know cocoon 2 is not yet a production environment, but I came into 
threading problem with Xalan. Indeed I have a 3-framed page which is 
generated from applying the same XSL sheet at almost the same time, and 
while the 1 page shows up well, the surrounding ones show Xalan exception 
complaining that the 'root Node cannot exists twice'

As I fell more confortable with the XT processor, I wrote a XT 
transformer that works fine in multi threaded environment. If anyone is 
interested I'll be glad to send it over.

All the best,

Sebastien

PS: There were threads discuting about integrating third party product or 
extension. Does the XT transformer fall into this category ? Indeed it 
would be nice to reproduce the Ant's optional package system : it checks 
if some classes (for exemple junit classes) are available in the 
classpath, and if so it compiles the related optional classes (Junit tasks).