I'm trying to use an object-to-json-transformer (and it's counterpart) to play with SI's AMQP support. I've added Jackson 2.1.2 to my classpath, however when the application starts up I get the old java.lang.NoClassDefFoundError: org/codehaus/jackson/map/ObjectMapper error.

I've even defined an object mapper bean (in the new com.fasterxml namespace) and set the transformers to use it, but that does not seem to work.

Am I stuck with the 1.x line for now?

Thanks.