This commit introduces a test in XmlBeanFactoryTests that verifies that
CGLIB generated subclasses for method injected beans are reused across
bean factories for identical bean definitions. In other words, by
verifying that the same CGLIB generated class is reused for identical
bean definitions, we can be certain that Spring is no longer generating
identical, duplicate classes that consume memory in the VM.

Issue: SPR-10785, SPR-11420

Issue: SPR-11416

- Consistent importing of org.junit.Assert.*;
- Proper declaration of expected exceptions via @test(expected).
- Renamed SpEL ExpressionTestCase to AbstractExpressionTests.
- Formatting and test method naming conventions.

Issue: SPR-11398

Prior to this commit several test classes named "*Test" were not
recognized as tests by the Gradle build. This is due to the configured
inclusion of '**/*Tests.*' which follows Spring's naming convention for
test classes.

This commit addresses this issue by:

 - Renaming real test classes consistently to "*Tests".
 - Renaming internal test classes to "*TestCase".
 - Renaming @WebTest to @WebTestStereotype.
 - Disabling broken tests in AnnoDrivenStaticEntityMockingControlTest.
 - Modifying the Gradle build configuration so that classes ending in
   either "*Tests" or "*Test" are considered test classes.

Issue: SPR-11384

Also avoided unnecessary substring creation for field error access with wildcard.

Issue: SPR-11374

Also introducing overridable isBeanEligible template method.

Issue: SPR-11366

Stereotype annotations should support a 'value' attribute for
specifying the name of the Spring-managed component; however,
@RestController currently does not provide such an attribute.

This commit introduces a 'value' attribute in @RestController so that
developers can provide custom names for components annotated with
@RestController.

Issue: SPR-11360

Removed LocalDateToDateMidnightConverter pre-release since DateMidnight is deprecated as of Joda-Time 2.3; marked DateTimeToDateMidnightConverter as deprecated

Issue: SPR-11354

Issue: SPR-11344
(cherry picked from commit d434ef97)

Issue: SPR-10886
Issue: SPR-7342

Issue: SPR-11337

Issue: SPR-11250

Issue: SPR-11304

Consistent equals/hashCode/toString implementations in AnnotationMatchingPointcut/ClassFilter/MethodMatcher

Issue: SPR-11275
Issue: SPR-11276

Issue: SPR-11282

Introduced OptionalValidatorFactoryBean for scenarios where the JSR-303 API is present but no Bean Validation Provider is available (used by the MVC namespace)

Issue: SPR-11272

Issue: SPR-11272
(cherry picked from commit c48da0d9)

Issue: SPR-11259

Also adding several further Joda-Time converters for consistency with JSR-310 converters.

Issue: SPR-11259

Also completing 4.0's consistency efforts between Spring's cache adapters.

Issue: SPR-11246

Issue: SPR-11249

Issue: SPR-11215