* pr/27155:
  Add Javadoc since to BeanDefinitionBuilder.setSynthetic()

Closes gh-27155

See gh-27155

* pr/27151:
  Fix link to Javadoc API
  Fix link to Javadoc API

Closes gh-27151

See gh-27151

See gh-27151

Closes gh-27068

Closes gh-27121

Closes gh-27132

See gh-26700

If the ThreadPoolTaskExecutor is dynamically changed with an invalid value
the state of the ThreadPoolTaskExecutor does no longer correctly represent
the state of the underlying ThreadPoolExecutor

Includes removal of trace logging for individual synchronization steps.

Closes gh-26955

Closes gh-26569

Closes gh-27044

Closes gh-27139

Includes upgrade to Tomcat 9.0.50, Jetty 9.4.43, Jackson 2.12.4.

Closes gh-27147

This commit reinstates abortOnCancel in the ReactiveRequest builder,
which allows a cancel signal to abort the request.

See gh-26287 and gh-27112

This commit makes JettyServerHttpRequest aware of
HttpServletRequestWrapper, and JettyServerHttpResponse aware of
HttpServletResponseWrapper.

Closes gh-27146

Closes gh-27141

This commit makes various bug fixes in CronExpression and related files.

Closes gh-27136

Before this commit, JettyClientHttpResponse checked for the presence of
a server-side class to determine whether it is running on Jetty 10.
Unfortunately, that class is not necessarily present when just using the
Jetty client.

This commit improves the Jetty 10 check, so that it also works when
the Jetty client is used without the server.

Closes gh-27136

This commit makes sure that we no longer use the internal API in the
Jetty support for the WebClient. With this change, we are able to
support both Jetty 9, 10, and 11.

Closes gh-27112

* pr/27102:
  Update copyright year of changed file
  Simplify Comparator using method references

Closes gh-27102

See gh-27102

See gh-27102

* pr/27101:
  Update copyright year of changed file
  Delete unnecessary variable

Closes gh-27101

See gh-27101

See gh-27101

* pr/27113:
  Fix typo in core-beans.adoc

Closes gh-27113

See gh-27113

This reverts commit d6df4a65 because running
gradle generatePomFileForMavenJavaPublication throws a
kotlin.KotlinNullPointerException error with Kotlin 1.5.20.

Revert Mockito upgrade done in 5d919dc0 because
Byte Buddy transitive upgrade from 1.11.1 to 1.11.3 seems to break Mockk tests
with java.security.AccessControlException related errors, so probably
better to wait Mockito using Byte buddy 1.11.5+ which seems to refine
this area, see https://github.com/raphw/byte-buddy/releases/tag/byte-buddy-1.11.5.

Closes gh-27110

Closes gh-27109

* pr/27105:
  Update copyright year of changed file
  Fix typo in BeanDefinitionDsl.kt

Closes gh-27105