Spring @Scheduled method found on bean target class

I received this error while wiring up a method with the @Scheduled annotation on it.  The method was a concrete implementation of an interface so at runtime it was a proxy.  Apparently, the @Scheduled annotation has a hard time being on a proxy, but the workaround seems to be to put the annotation on the interface and the concrete impl. 

Here is a bug logged here.
And more information on @Scheduled.