Maybe dom4j+stax is a problem in osgi, but it works perfectly fine in SE (out testsuite).

Jaxb layers on top of Jaxp (dom, stax, etc) so not sure why that would cause a "tangle".

Woodstock is just an implementation of stax. And we only ever use it in our testsuite (because it is supposedly faster and more efficient). You should not "need it".

So long story short, I have no idea why these things would be a problem. But then there is much black magic I do not comprehend when it comes to osgi. Perhaps it does not properly support jaxb or stax?