See gh-22991

Update `JarFileWrapperTests` so that the jar files are closed after each
test.

See gh-22991

* pr/23002:
  Mention correct JUnit 5 annotations in Kotlin testing section

Closes gh-23002

See gh-23002

Remove Mockto from JarFileWrapperTests since it seems to be failing on
later versions of Java.

See gh-22991

Refine method visibility in an attempt to fix test issues on Java 11+.

See gh-22991

Create a new `JarFileWrapper` class so that we can wrap and existing
`JarFile` and offer a version that can be safely closed.

Prior to this commit, we provided wrapper functionality in the `JarFile`
class itself. Unfortunately, because we override `close` and also create
a lot of wrappers this caused memory issues when running on Java 11.

With Java 11 `java.util.zip.ZipFile` class uses `FinalizableResource`
for any implementation that overrides `close()`. This means that any
wrapper classes will not be garbage collected until the JVM finalizer
thread runs.

Closes gh-22991

* pr/21134:
  Polish 'Order metrics auto-configurations correctly'
  Order metrics auto-configurations correctly

Closes gh-21134

See gh-21134

Update metrics auto-configurations so that they are auto-configured
after `CompositeMeterRegistryAutoConfiguration` in order to ensure
the `MeterRegistry` bean has been defined.

Prior to this commit, metrics auto-configurations that depended on a
`MeterRegistry` has `@AutoConfigureAfter(MetricsAutoConfiguration.class)`
which is not sufficient since `MetricsAutoConfiguration` does not export
a `MeterRegistry`.

See gh-21134

Update `@TypeExcludeFilters` so that it is also annotated with
`@Inherited`.

Closes gh-22939

Update SpringApplicationBuilder.properties method javadoc to fix
inaccuracies and apply more consistency.

Closes gh-22962

* pr/22948:
  Fix typo `Assert4J` -> `AssertJ`

Closes gh-22948

See gh-22948

* pr/22919:
  Polish "Fix conditions that lead to auto-configure PushGateway"
  Fix conditions that lead to auto-configure PushGateway

Closes gh-22919

See gh-22919

See gh-22919

* gh-22765:
  Mention configuration customizers for WebTestClient and RestAssured

Closes gh-22765

See gh-22765

* pr/22898:
  Polish "Harmonize Discover the HTTP Port at Runtime How-To"
  Harmonize Discover the HTTP Port at Runtime How-To

Closes gh-22898

See gh-22898

See gh-22898

Fixes gh-21542

Closes gh-22685

Closes gh-22615

* pr/21615:
  Polish "Migrate legacy endpoint that have a dash in their id"
  Migrate legacy endpoint that have a dash in their id

Closes gh-21615

See gh-21615

See gh-21615

* pr/22777:
  Polish "Propagate the cause that led Reactor"s debug agent to fail"
  Propagate the cause that led Reactor"s debug agent to fail

Closes gh-22777

See gh-22777

Prior to this commit, DebugAgentEnvironmentPostProcessor throws a
RuntimeException with a generic error message if its initialization
fails. The causing exception is discarded, which makes error analysis
unnecessarily difficult.

This commit attaches the cause to the newly thrown RuntimeException.

See gh-22777

Closes gh-22490

Closes gh-22763

Closes gh-22281