Proposed change aimed to keep coherence between variable declaration 
and static initialization code, which stores 9 values, not 8, in these
two maps.

Closes gh-27016

See gh-26989

Closes gh-26987

Prior to this commit, in some cases application context startup steps
could be created concurrently, which could cause issues with the current
implementation tracking the parent/child relationship between steps.

This commit ensures that the flight recorder implementation is using
thread safe collection implementations for that.

Fixes gh-26941

This commit ensures that `DefaultApplicationStartup` returns a static
step for each call to avoid allocations.

Closes gh-26939

Make sure that we use the parameter name in MultipartBodyBuilder::part
when adding a Part, instead of using the name specified in the
'Content-Disposition' header that might have been in the part's headers.

Closes gh-27007

This commit introduces CronExpression::isValidExpression, which was also
present on the deprecated CronSequenceGenerator.

Closes: gh-26996

Closes gh-27003

Closes gh-27001

Closes gh-26998

Upgrade to R2DBC Arabba-SR10, Netty 4.1.65, Undertow 2.2.8, Jetty 9.4.41, Jetty Reactive HttpClient 1.1.8, Apache HttpClient 5.1

* pr/26980:
  Fix typo in code example

Closes gh-26980

See gh-26980

This commit makes sure that BitsCronField rolls the date forward in
cases where we cannot find a next bit to elapse to.

Closes: gh-26964

See gh-26871

Closes gh-26871

This commit improves the Javadoc regarding transactional semantics for
@TransactionalEventListener methods invoked in the AFTER_COMMIT,
AFTER_ROLLBACK, or AFTER_COMPLETION phase. Specifically, the
documentation now points out that interactions with the underlying
transactional resource will not be committed in those phases.

Closes gh-26974

Closes gh-26933

* pr/26973:
  Update copyright year of changed file
  Fix typo

Closes gh-26973

See gh-26973

See gh-26973

See gh-26958

Closes gh-26968

Closes gh-26967

Prior to this commit, the `RouterFunctionMapping` WebFlux.fn variant
would set the `HandlerMapping.BEST_MATCHING_PATTERN_ATTRIBUTE` as an
exchange attribute. This is useful for instrumentation purposes.
The WebMvc.fn variant would not do the same; this would lead to
"UNKNOWN" path metrics tags.

This commit ensures that the `RouterFunctionMapping` WebMvc.fn variant
does set the `BEST_MATCHING_PATTERN_ATTRIBUTE` and
`BEST_MATCHING_HANDLER_ATTRIBUTE` request attributes.

Closes gh-26963

Closes gh-26960

Closes gh-26952

Many of the utility methods in ScriptUtils are public only because they
were once invoked from JdbdTestUtils in spring-test, which is no longer
the case. Consequently, there should no longer be a need for any
external clients to invoke such methods.

To address this, this commit formally deprecates the following methods
in ScriptUtils in spring-jdbc.

- readScript(...)
- containsSqlScriptDelimiters(...)
- splitSqlScript(...)

Closes gh-26947

See gh-26947

See gh-26947

Closes gh-26927

See gh-26927

See gh-26947

Prior to this commit, many of the utility methods in ScriptUtils in
spring-r2dbc were public by accident: they were copied from ScriptUtils
in spring-jdbc without changing the visibility when spring-r2dbc was
introduced in Spring Framework. 5.3 GA.

This commit corrects this mistake by removing internal APIs from
ScriptUtils in spring-r2dbc from the public contract.

See gh-26947