[Zope] Using Java libraries on Zope (XML) content

If you had a Zope application that needed some library fuctionality that is only available with Java at present, what would be the best way to integrate? For simplicity let's limit the scope of the question to using Batik (SVG->PNG/JPG) and/or FOP (XML->PDF) on some dynamic XML that came out of a Zope method instead of HTML, and as destined to be transformed before its seen by the user. There's always java HTTP servlets, but would there be a way to eliminate the latency and overhead? I.e. Is there something in Python that would wrap Java API's so they executed more or less in-process with the Zope XML generating code? (I suppose running a whole Zope on Jython is out of the question :) )