Getting a real query string in Jersey

I'm having trouble implementing a kind of odd spec using Jersey, and that would help me if I could get an unprocessed query string.

Does the specification basically cause queries that end? and?? for processing separately, but from what I can say, UriInfo does not return a query string to you, but a URI object that interrupts the last? off So I can not distinguish between queries that ended in one? from those that did not end with anything.

Any idea on how I'm going to get a raw query string? Or should I just refuse to use a servlet?