RESTTemplate / Message Converter: text/plain to Source

[sffil]

I have a web service that returns an XML document and I'd like the RESTTemplate to convert the content of the document to javax.xml.transform.Source. Unfortunately, the web service encodes the document as text/plain. This causes the SourceHTTPMessageConverter to reject the message.

My initial solution is to use StringHTTPMessageConverter and then parse the document using a DOMBuilder. Another solution seems to be to override the readInternal() method in StringHTTPMessageConverter, performing the conversion there.

Is there a more elegant way to do this?