Issue: SPR-11571

Issue: SPR-11749

Issue: SPR-11695

This change refines the logic of "mapping" content negotiation
strategies with regards to how to handle cases where no mapping is
found.

The request parameter strategy now treats request parameter values that
do not match any mapped media type as 406 errors.

The path extension strategy provides a new flag called
"ignoreUnknownExtensions" (true by default) that when set to false also
results in a 406. The same flag is also exposed through the
ContentNegotiationManagerFactoryBean and the MVC Java config.

Issue: SPR-10170

Issue: SPR-11506

Added the ability to send a message only to one user session. Given a
user has two tabs open and the client sends a message to the server
from tab 1, it is now possible to send a reply message to only 1 tab
instead of the default mode of targetting all known user sessions.

Issue: SPR-11506

(cherry picked from commit a1396702)

AnnotationMetadataReadingVisitor passes metaAnnotationMap into getMergedAnnotationAttributes algorithm, for finding out about applicable overrides

Issue: SPR-11649

Issue: SPR-11673

Issue: SPR-11673

Issue: SPR-11673

Animal sniffer provides tools to assist verifying that classes
compiled with a newer JDK are compatible with an older JDK.

This integratesthe latest version of the tool (1.11) that
permits the use of custom annotations. Added @UsesJava7,
@UsesJava8 and @UsesSunHttpServer and annotated the few places
where we rely on a specific environment.

The verification process can be invoked by running the 'sniff'
task.

Issue: SPR-11604

polishing

JRubyScriptUtils defensively handles null Nodes in findClassNode (fails against JRuby 1.7.12 otherwise)

Issue: SPR-11747

(cherry picked from commit 27b2ed16)

This commits fixes a confusing phrasing of Cacheable javadoc that
mentioned explicitly that the method signature is used to compute the
key for the cache.

Issue: SPR-11736

Issue: SPR-11657

Issue: SPR-11657

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