Previously, the setter of a property whose second letter is upper-case (
such as `oAuth2Uri`) was not detected properly. The JavaBean spec states
that, in such a case, the first letter should not be capitalized (i.e.
the setter should be `setoAuth2Uri` rather than `setOAuth2Uri`).

This commit makes sure that Jackson uses standard bean names and fixes
the setter detection algorithm to take this case into account.

Closes gh-13878

* pr/14015:
  Polish OnWebApplicationCondition

Closes gh-14015

* pr/14013:
  Fix typo

Closes gh-14013

Closes gh-13948

Those can be re-added at any time there is Spring Boot 2 support

Closes gh-13510

Closes gh-13787

This commit restore the use of the `postProcessRequestHeaders` method
when overridden in a custom HttpExchangeTracer implementation.

Closes gh-13924

* pr/13990:
  Polish "Add global support for JMX unique names"
  Add global support for JMX unique names

This commit ensures that the new "spring.jmx.unique-names" property
deprecates the Endpoint's specific property as they share the same goal.

If both are set with an incompatible value, an exception is thrown
inviting the user to update their configuration.

Closes gh-13990

See gh-13990

This commit adds support for providing a default ThreadPoolTaskExecutor
with sensible defaults. A new TaskExecutorBuilder is provided with
defaults from the `spring.task.*` namespace and can be used to create
custom instances.

If no custom `Executor` bean is present, `@EnableAsync` now uses the
auto-configure application task executor. Same goes for the async support
in Spring MVC.

Closes gh-1563

Closes gh-14000

* pr/13983:
  Upgrade to Kafka 2.0.0

Closes gh-13983

* pr/13988:
  Include @ in javadoc links for annotations

Closes gh-13988

See gh-13988