Custom XML processing with JAXB

I would like to implement a custom processing with JAXB on XML like:

<?xml version="1.0" encoding="UTF-8"?>
<changelog>
   <include file="relative/path/to/file.xml" />
</changelog>

And file.xml would be something like this (possibly defining include elements as well):

<?xml version="1.0" encoding="UTF-8"?>
<changelog>
   <changeset ....>
</changelog>

Resulting in this example in the following equivalent XML (notice that the root element of file.xml is not included):

<?xml version="1.0" encoding="UTF-8"?>
<changelog>
   <changeset ....>
</changelog>

Is it feasible with JAXB? I know this totally mimics XInclude, but the latter is not supported by all parsers and requires more boilerplate.

Thanks in advance, Rolf