DestinationCache is now used for both plain and pattern
destinations. It stores internally the subscriptions map for each
cached destination. Subscriptions are initially created when there
is no cache for the requested destination, and are updated when
subscriptions change.

Issue: SPR-11657

Avoid dependency on order in which expected messages are received.

This change simplifies the implementation of the "test" EventPublisher
and MessageHandler used in the STOMP broker relay integration tests.
The updated implementations use a time-limted poll on a BlockingQueue.

AbstractAutoProxyCreator and AbstractAdvisingBeanPostProcessor consistently not considering configuration callbacks and internal language interfaces as reasonable proxy interfaces

Issue: SPR-11715

AbstractAdvisingBeanPostProcessor uses target class check for existing proxy but checks against actual exposed object otherwise (catching introductions)

Issue: SPR-11725

Also update <mvc:annotation-driven /> comment in XSD.

Issue: SPR-11703

Issue: SPR-11672

Revised @PropertySource parsing for consistent PropertySource naming, avoiding accidental overriding by name

Issue: SPR-11637

Issue: SPR-9335

Issue: SPR-11647

Issue: SPR-10744

Issue: SPR-9671

(cherry picked from commit c97c2469)

Issue: SPR-11737
(cherry picked from commit 93d13cfc)
(cherry picked from commit 4196e6c9)

Issue: SPR-11721
(cherry picked from commit 59cef3ce)

Configuration class processing explicitly skips java.* classes since we'll never find @Bean annotations there anyway

Issue: SPR-11718
(cherry picked from commit c8ea80d7)

@Bean processing explicitly ignores bridge methods (for method overrides with return type narrowing on JDK 8)

Issue: SPR-11718
(cherry picked from commit 656fc52f)

Also respect HandlerMapping order in ResourceUrlProvider

The original fix for SPR-11423:
https://github.com/spring-projects/spring-framework/commit/32e5f57e647022d9ea82c03670936bf31f8467de

was insufficient when using an external broker since the original
destination header has to be in the "native headers" map (i.e. with
STOMP headers) in order to be included in messages broadcast by
the broker.

The ResourceResolverChain can return null, so PrefixResourceResolver
should be skipped in that case.

* pull530:
  Add space separator in JsonPathExpectationsHelper

This commit removes the queue attribute of the JmsListener annotation
as this information should be provided by the container factory and not
by each individual listener endpoints.

There was a side effect that an annotation value cannot be null, which
was forcing the container to be a queue-based container by default.

Issue: SPR-9882

The configured prefix should not begin with a "/", since
PublicResourceUrlProvider is already taking path mapping into account
when resolving resources and URLs.

This commit replaces the "responseDestination" attribute on the
JmsListener annotation by a support of the standard SendTo annotation.

Issue: SPR-11707

Prior to this commit, the default JmsListenerContainerFactory to use
must be explicitly set. Since having a single container factory is a
fairly common use case, we look up the default one automatically
using the bean name "jmsListenerContainerFactory".

It is still possible to provide an explicit default but since it refers
more to "the" container factory to use, the parameter has been
renamed to "containerFactory" which is shorter and more explicit.

The lookup strategy is lazy: if all endpoints are providing an
explicit container factory and no container factory with the
"jmsListenerContainerFactory" bean name exists, no exception
will be thrown.

Issue : SPR-11706

This change modifies the names of the Reactor support classes in order
to align with the same changes in the 4.0.x line which now supports
both Reactor 1.1 and 1.0.

Issue: SPR-11636

Issue: SPR-11721