Generic return object for a collection of objects in RESTful Spring3 app

I am looking for a generic way of returning a set of objects in my REST service. I use the Spring3 message-converters and the @ResponseBody annotation.

Some sites say that JAXB2 has "problems" returning a standard java.util.List, and all examples found define a dedicated class (e.g. Authors, Products, Customers) for each data domain, such as:

http://www.ibm.com/developerworks/web开发者_开发百科/library/wa-spring3webserv/index.html (see "Collection of resources", second paragraph)

Has anyone found a way to provide a generic class/approach for this that spares me creating all those collection classes?

Update 5th April 2011: I haven't really made any progress on this. Returning a generic list object always results in a JAXBException "class XXX nor any of its super class is known to this context"

When creating REST services in a JAX-RS framework (which uses JAXB for XML binding) you can return a List. For an example see:

• http://bdoughan.blogspot.com/2010/08/creating-restful-web-service-part-45.html

What happens when you try to do this with Spring?

You can just return a ModelMap and put whatever objects you want in there including arrays.

Wondering ... did you set the Content-Type : application/xml in the request headers?