Closes gh-2958

Closes gh-13895

Closes gh-14250

Closes gh-14714

Closes gh-14713

* pr/14707:
  Remove unused fields in tests

Closes gh-14707

* gh-14708:
  Fix broken Asciidoctor syntax

Closes gh-14708

Previously, if WebFlux and Jersey were on the classpath, but there was
no Servlet API (and no embedded container) on the classpath, the web
application type would be prevented from being reactive. The absence
of the Servlet API would then prevent the web application type from
being servlet so it would be none.

By contrast, if Spring MVC was on the classpath in place of Jersey
the absence of the Servlet API would allow the web application type to
be reactive. This happened because the Spring MVC indicator class is
DispatcherServlet which requires the Servlet API.

This commit updates the Jersey indicator class to be ServletContainer.
This class is both an HttpServlet and a Filter so it too requires the
Servlet API and, therefore, further aligns the deduction behaviour for
Jersey and Spring MVC.

Closes gh-14701

Closes gh-14604

Closes gh-14589

Closes gh-14700

Closes gh-14675

Closes gh-14691

Closes gh-14692

Previously, the JSON-B auto-configuration would be enabled when the JSON-B API was
on the classpath. This led to a failure if there was no implementation available.

The JSON-B API loads an implementation using the service loader. This commit updates
the auto-configuration to be conditional on the presence of a
META-INF/services/javax.json.bind.spi.JsonbProvider file on the classpath.

Closes gh-14675

* pr/14620:
  Simplify escaping of newline characters when publishing release notes

Closes gh-14620

Closes gh-14689

* pr/14688:
  Fix BeansEndpoint typo in readme

Closes gh-14688

Fix possible NPE in `ReactiveWebServerApplicationContext`.

See gh-14666

* pr/14583:
  Polish "Make sure cache busting works with error pages"
  Make sure cache busting works with error pages

Closes gh-14583

See gh-14583

Refactor `ReactiveWebServerApplicationContext` to improve thread safety
by using a single manager object rather than then trying to synchronize
the `WebServer` and `HttpHandler`.

Closes gh-14666

Previously, only the permissions for the scripts in bin/ were set. The
permissions for the files in lib/ were not explicity set, leaving them
with the same permissions as the source files in Gradle's cache. This
has proven to be a little brittle when building in certain
environments, leading to test failures. It also assumes that the
file permissions in Gradle's cache will be appropriate for entries in
a distribution archive. That may not always be a reasonable assumption
to make.

To avoid the above-described problems, this commit updates the copy
spec that's used to add files to lib/ in the archive so that each
file uses 0644 for its permissions.

Closes gh-14158

This commit fixes missing descriptions and default values when
applicable for `management.server.ssl`, `server.compression`,
`server.http2`, `server.servlet.jsp`, `server.servlet.session` and
`server.ssl`.

Those nested namespace are managed by a POJO that is declared outside
of the module of the target @ConfigurationProperties type using it. As
a result, the annotation processor has no access to the source model and
can't extract the description and the default value, if any.

This commit migrates the misleading field-level Javadoc to manual meta
data for the time being.

Closes gh-14669

* pr/14681:
  Clarify Javadoc of ConditionalOn annotations

Closes gh-14681

Closes gh-14589

* pr/14670:
  Polish docs

This commit replaces tabs to spaces in a yaml example for configuring
endpoint web exposure include.

Closes gh-14670

Closes gh-14645

Closes gh-14668