I ran into the same problem. My REST resources answered correctly, but I received the same SEVERE message. In fact, if you are trying to embed some of my beans in some of the REST services, I got a NullPointerException on any bean call.
It so happened that the jersey initialized the rest of the services, but did not initialize my spring beans (let me say ... right, I had to !!)
I decided to just make spring aware of my bean :)
Just add context: component-scan base-package = "myPackage"
The warning (and NullPointers) is gone!
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