See gh-10870

Rename `@DurationUnit` to `@DefaultDurationUnit` to make it clearer
that it only changes the unit if one isn't specified by the user.

Closes gh-11078

Align `MongoReactiveSessionConfiguration` `@ConditionalOnClass` with
`MongoSessionConfiguration`

See gh-11063

* gh-11063:
  Polish "Improve Spring Session auto-configuration tests"
  Improve Spring Session auto-configuration tests

See gh-11063

Closes gh-11063

This commit adds several configuration keys for customizing the
"Cache-Control" HTTP response header when serving static resources.

New keys are located in the "spring.resources.cache-control.*"
namespace; anything configured there will prevail on existing
"spring.resources.cache-period=" values, so as to mirror Spring MVC's
behavior.

Fixes gh-9432

Closes gh-11009

Closes gh-10942

Closes gh-11089

Closes gh-10335

Closes gh-11088

Closes gh-11087

* pr/11084:
  Polish "Align Session auto-config with Redis namespace config support"
  Align Session auto-config with Redis namespace config support

Closes gh-11084

See gh-11084

See gh-11085

See gh-11083

See gh-11082

Update appropriate configuration properties to use the `Duration`
type, rather than an ad-hoc mix of milliseconds or seconds.

Configuration properties can now be defined in a consistent and readable
way. For example `server.session.timeout=5m`.

Properties that were previously declared using seconds are annotated
with `@DurationUnit` to ensure a smooth upgrade experience. For example
`server.session.timeout=20` continues to mean 20 seconds.

Fixes gh-11080

Update the configuration properties annotation processor to deal
with `Duration` based default values. For example a field that
defaults to `Duration.ofSeconds(10)` will have a meta-data default
value of `10s`.

See gh-11080

Update `StringToDurationConverter` so that the suffix is optional and
values such as `100`, `+100`, `-100` are assumed to be milliseconds.

Also add support for `@DurationUnit` to allow the unit to be changed
on a per-field basis (allowing for better back-compatibility).

Closes gh-11078

Closes gh-11064

Add `FilteredClassLoader` to replace `HideClassesClassLoader` and
`HidePackagesClassLoader`.

Fixes gh-10303

Align `WebServer` application contexts with Spring Framework by allowing
a custom beanFactory to be used on construction.

Fixes gh-8547

Extend `BinderConversionService` to support `Duration` parsing of
the more readable `10s` form (equivalent to 10 seconds). Standard
ISO-8601 parsing also remains as an option.

Fixes gh-11078

Fix public constructor accidentally added in commit 72862b56.

See gh-10387

* pr/10387:
  Polish location check with vendor placeholder
  Support location check with vendor placeholder

Closes gh-10387

Update location check logic triggered if `flyway.check-location=true`
to resolve any vendor placeholders in `flyway.locations`.

See gh-10387

* pr/11076:
  Polish Kafka transaction support property
  Add Kafka transaction support property

Closes gh-11076

Add `spring.kafka.producer.transaction-id-prefix` property that will be
passed to `DefaultKafkaProducerFactory.setTransactionIdPrefix(...)`

See gh-11076

* pr/11075:
  Polish