So you did not create the classes defining the XML structure from an XMl schema using xjc?
You might get around this by adding, to each package where one of those files is located, a file called jaxb.index containing a newline separated list of class names relative to the very same containing package. So, if you have a class a.b.c.Doo, the jaxb.index in a.b.c contains a line "Foo". See the javadoc for javax.xml.bind.JAXBContext.
Try to marshal your object locally by creating a JAXBContext, a Marshaller from it, and marshal to System.out.
-W