Extended DefaultAopProxyFactory to create Objenesis based proxies if the
library is on the classpath. This allows classes without a default
constructor being CGLib proxied. We're now falling back to original CGLib
based behavior in case the proxy creation using Objenesis fails.

Objenesis 2.0 is now inlined into spring-core to avoid interfering with
other Objenesis versions on the classpath.

Issue: SPR-10594

This commit undoes the changes made in ec5d81e7 and ensures that the
getRequestURL() method in MockHttpServletRequest does not include the
String "null" for a null requestURI by first checking if the requestURI
contains text before including it in the composed URL.

Issue: SPR-10643

Issue: SPR-10888

(cherry picked from commit 61109198)

Revised PersistenceExceptionTranslationInterceptor to lazily retrieve PersistenceExceptionTranslator beans on demand

Issue: SPR-10894

Issue: SPR-9495

Issue: SPR-9495

Issue: SPR-10452

* listenable_future:
  Added ListenableFuture interface

Added extension to Future with capabilities for registering callbacks
when the future is complete.

- Added ListenableFuture, ListenableFutureCallback,
  ListenableFutureCallbackRegistry, and ListenableFutureTask.
- Using ListenableFuture in AsyncRestOperations/AsyncRestTemplate.
- Added AsyncListenableTaskExecutor, implemented in
  SimpleAsyncTaskExecutor.
- Added FutureAdapter and ListenableFutureAdapter.

Issue: SPR-10703

Issue: SPR-10880

The @Bean method now returns WebSocketHandler allowing it to be
decorated via WebSocketHandlerDecorator.

Uses Object-typed setter methods to bridge between package location changes in Hibernate 4.2 vs 4.3. As a side bonus, those setters accept Class and class names as well.

Issue: SPR-10823

Due to key SPI interfaces such as ConnectionProvider and JtaPlatform changing their package location in Hibernate 4.3, we have to resort to reflection in a few places. Most importantly, the ConfigurableJtaPlatform used by the setJtaTransactionManager method has now been redesigned as a reflective proxy.

Issue: SPR-10839

JtaTransactionManager's configuration options for a TransactionSynchronizationRegistry are now in sync with the options for UserTransaction/TransactionManager. Specifically, there are setTransactionSynchronizationRegistry/getTransactionSynchronizationRegistry methods for programmatic configuration now.  Motivated by Spring's adapting to a Hibernate JtaPlatform, specifically the Hibernate 4.3 changes in that area.

Issue: SPR-10839

After this change, annotated message handling methods configured to use
a destination prefix (e.g. "/app") no longer have to include the prefix
in their mapping. For example if a client sends a message to "/app/foo"
the annotated methods should be mapped with @MessageMapping("/foo").

Added "target-package" to the jibx-marshaller element. Also fixed "context-path" and "binding-name" to follow Spring's usual attribute naming convention.

Issue: SPR-10882

Also exposing "getPoolSize()" and "getActiveCount()" from ThreadPoolTaskScheduler now, analogous to ThreadPoolTaskExecutor.

Issue: SPR-10883

Also internally renaming SimpleNonIndexedPropertyDescriptor to SimplePropertyDescriptor and preferring direct field access wherever possible.

Issue: SPR-10862
(cherry picked from commit 5639aa70)

Issue: SPR-10885
(cherry picked from commit 55961544)

Changed return values of Future<Void> to Future<?> in AsyncRestTemplate
and AsyncRestOperations.

Ensure configuration provided for WebSocketHandler's (eg interceptors,
or HandshakeHandler) are passed on to the SockJsService if congiured.

Better separate Servlet-specific parts of the configuration to make it
more obvious where non-Servlet alternatives could fit in.

Add more tests.

Improve WebSocket integration tests.

Issue: SPR-10880

Issue: SPR-10884

Issue: SPR-10876

Issue: SPR-10272