See gh-17390

Closes gh-17482

* gh-17480:
  Polish AbstractDependsOnBeanFactoryPostProcessor

Closes gh-17480

See gh-17480

Closes gh-17481

* gh-16627:
  Polish "Set up MongoClient beans' dependencies by type rather than name"
  Set up MongoClient beans' dependencies by type rather than name

Closes gh-16627

See gh-16627

See gh-16627

See gh-17128

Closes gh-17479

* gh-17020:
  Polish "Allow depended on beans to be identified by type"
  Allow depended on beans to be identified by type

Closes gh-17020

See gh-17020

Prior to this commit, `AbstractDependsOnBeanFactoryPostProcessor`
could only identify depended on beans by name.

See gh-17020

Closes gh-17478

Closes gh-17476

The `reactor-tools` dependency now brings a new Reactor Debug Agent
which instruments loaded classes for better Reactor stacktraces.
This commit removes the `spring.reactor.stacktrace-mode.enabled`
configuration property since the related Reactor Hook is about to be
removed.
As a replacement, we're introducing `spring.reactor.debug-agent.enabled`
which tells whether the Reactor Debug Agent should be loaded, given that
the `reactor-tools` dependency is available. This option is enabled by
default, since adding the dependency on classpath is a strong signal
already.

Fixes gh-17128

Prior to this commit, having the `spring-boot-starter-rsocket` and the
`jackson-dataformat-xml` dependencies on classpath would result in a
`ClassCastException` when the RSocket auto-configuration tries to
configure Jackson CBOR codecs for RSocket strategies.

This commit disables the Jackson XML support for the CBOR codec in
RSocket.

Fixes gh-17425

This commit uses native Reactor operators `Mono.fromCallable` and
`subscribeOn` for better performance and support.

Fixes gh-17452

* gh-17444:
  Use Assertions.contentOf() where possible

Closes gh-17444

See gh-17444

* gh-17473:
  Add Javadoc `@since` tags for new additional Tomcat connectors methods

Closes gh-17473

See gh-17473

* gh-17471:
  Remove folder that only contains package-info

Closes gh-17471

See gh-17471

Closes gh-17470

Fixes gh-17217

Closes gh-17467

Closes gh-17446

* gh-17462:
  Polish BatchAutoConfiguration

Closes gh-17462

See gh-17462

Closes gh-17466

Fixes gh-17465

* gh-17459:
  Polish Base64 usages

Closes gh-17459

See gh-17459

Closes gh-17463

Closes gh-17461

Closes gh-17460

Closes gh-17419

Closes gh-16663