SPR-6142 AbstractMessageListenerContainer now accepts an implementation of the ErrorHandler strategy for handling any uncaught exceptions thrown while processing a Message. The default behavior is still to log at error-level only (no ErrorHandler).

SPR-6094: PostConstruct now processed top-down (base class first); @PreDestroy processed bottom-up (subclass first)

SPR-6142 Moved ErrorHandler strategy interface to the org.springframework.util package so that it can be used by MessageListener containers in addition to TaskSchedulers.

SPR-6130 - Be able to specify a default content type when no extension is used in ContentNegotiatingViewResolver