See gh-13352

* pr/13338:
  Polish "Retrieve javax.cache.CacheManager using Bean ClassLoader"
  Retrieve javax.cache.CacheManager using Bean ClassLoader

Closes gh-13338

This commit uses the bean's classloader to retrieve the CacheManager to
prevent issues with off-heap serialization.

See gh-13338

This commit separates the auto-configuration of JavaMailSender in two
distinct configuration: one based on existing Session available on JNDI
and the other one based on properties configuration.

This clarifies the auto-configuration report and the fact that the JNDI
variant overrides any Session-related properties that would have been
set in the environment

Closes gh-13026

Update `JarURLConnection.get()` to guard against the wrong nested JAR
being used as context.

Closes gh-11367

Update `ErrorPageFilter` so that a Tomcat `ClientAbortException` no
longer causes "Cannot forward to error page for request" logging for
committed responses. Since a `ClientAbortException` indicates that the
client is no longer available it's of no consequence that the request
has been committed and the forward will fail.

Closes gh-13221

Closes gh-13291

Update `ServerProperties` to also call `setHttpOnly` on the
`TomcatContext`. It appears that this is required in addition to
using the `ServletContextInitializer` to setup `SessionCookieConfig`.

Closes gh-12580

Closes gh-13138

Closes gh-13249

* pr/13262:
  Polish "Reference the latest version of the jOOQ manual"
  Reference the latest version of the jOOQ manual

Closes gh-13262

See gh-13262

The `HelpMojo` class is always generated and it should not be checked
for formatting.

See gh-13255

Use `spring-javaformat` to format and check code. Code formatting can
now be applied using the `spring-javaformat-maven-plugin` from the
command line. Existing checkstyle rules have also been replaced and
the CONTRIBUTING.adoc file has been updated.

Closes gh-13255

Closes gh-13245

Update contributing documentation and the issue template with
instructions on how to report security vulnerabilities.

Closes gh-12509

Closes gh-13127

Prior to 3db5c70b, RelaxedDataBinder would use a ConversionService
to convert a String into a File via its ObjectToObjectConverter.
3db5c70b changed the configuration of the data binder such that a
FileEditor was registered. Property editors take precedence over any
conversion service so the FileEditor was used instead. This caused a
regression as the FileEditor uses slightly unusual logic for a String
to File conversion. Specifically, when given a value of ".", it will
locate a ClassPathResource for the root of the classpath and use the
result of calling getFile() on that resource. This fails when the
root of the classpath is in a jar file and also provides a different
result when the root of the classpath is not the current directory.

This commit updates RelaxedDataBinder to suppress the registration
of an editor for File. This restores the behaviour prior to 3db5c70b
by allowing the ConversionService to be used instead.

Closes gh-12786

See gh-13196

* pr/13175:
  Polish "Respect lombok.AccessLevel attributes"
  Respect lombok.AccessLevel attributes

Closes gh-13175

See gh-13175

Closes gh-12995

Closes gh-13167

Previously, when the embedded Undertow container was stopped, the
servlet deployment was stopped but it was not undeployed. This meant
that contextDestroyed() callback of any registered
ServletContextListeners was not called.

This commit updates UndertowEmbeddedServletContainer to call undeploy
on the deployment manager in addition to the existing call to stop.
Undeploying the servlet deployment calls Undertow to drive the
contextDestroyed callback on any registered ServletContextListeners.

Closes gh-13134

* gh-12071:
  Polish "Suppress debug log output during Logback initialization"
  Suppress debug log output during Logback initialization

See gh-12071

Closes gh-12071

Closes gh-13150