Polish MvcUriComponentsBuilder
Workaround Javadoc bug with JDK 8 (b112+)

Remove Javadoc linkplain to ExceptionHandler#value() from
AnnotationMethodHandlerExceptionResolver to work around JDK
Javadoc bug 9007707.
Polish spring-messsaging

- Removed unused imports
- Organized imports
- Discontinued use of deprecated junit.framework.Assert class
- Suppressed warnings where appropriate
- Added missing generics to return type for getMappingComparator() in
  SimpAnnotationMethodMessageHandler
Polish spring-websocket

- Removed unused imports
- Organized imports
- Deleted unused fields
- Deleted unused local variables
- Deleted unused private static classes
Upgrade to Jetty 9.1.0 .RC0

This commit upgrades Jetty to the latest available 9.1.x version while
also preserving compatibility with 9.0.x.
Polish NamedParameterUtils

- Fixed typos in Javadoc
- Formatted Javadoc
Refined logging for advisors which are currently in creation

Issue: SPR-10430
Refined caching of AntPathStringMatcher per pattern

Introduced a "setCachePatterns(boolean)" method for explicit configuration, a default turnoff threshold at 65536 entries (at which point we're deciding that caching isn't worthwhile because patterns are unlikely to be reoccurring often enough), and an "AntPathStringMatcher getStringMatcher(String pattern)" template method.

Issue: SPR-10803
Polishing
Removed deprecated TransactionAspectUtils class
Fix warnings
Update the Jetty WebSocket adapter

This changes switches from using Jetty's WebSocketListener interface
to use Jetty's @WebSocket annotations instead. The change should be
transparent but the annnotations provide a little more controler
including handling pong frames.

This change also introduces a WebSocketMessage interface.

Issue: SPR-10877
Fix issue in AbstractMethodMessageHandler
Upgrade to Tomcat 8 RC5
AbstractApplicationContext's ApplicationListenerDetector removes listeners from ApplicationEventMulticaster on individual destruction

Issue: SPR-7856
Apply name-matching transaction attributes to user-level methods only

In particular, do not apply them to GroovyObject methods and other kinds of synthetic methods in language runtimes. The only exception are bridge methods since those do eventually point to a user-level generic method.

Issue: SPR-10803
Spring uses Joda-Time 2.0's specific parseLocalDate/parseLocalTime/parseLocalDateTime methods now

Issue: SPR-11014
Avoid filling up AntPathMatcher cache

This change avoid use of AntPathMatcher to extract URI template
variables when the lookup path is used as the best matching pattern.

Issue: SPR-10803
Protect against NPE when resolving generic array

Update ResolvableType to check that the resolved component type from
a generic array is not null before attempting to use it to generate the
resolved array class.

Issue: SPR-11044
Refined check for cache turnoff threshold

Issue: SPR-10803