Update `Instantiator` so that it can accept a `ClassLoader` when
creating instances and rework `EnvironmentPostProcessorsFactory` to
use the new methods.

Prior to this commit we would use the `ClassLoader` to get the class
names from `SpringFactories` but not when actually creating the
instances.

Fixes gh-27043

Closes gh-27068

Closes gh-27067

Closes gh-27066

Closes gh-26967

Closes gh-26966

Closes gh-27026

Update `BindFailureAnalyzer` so that the "Reason" message includes
the root cause exception type and message.

Closes gh-27028

Update `BindConverter` to throw the first `ConversionFailedException`
rather than always throwing `ConverterNotFoundException`.

See gh-27028

Closes gh-27055

Closes gh-27054

* pr/27017:
  Add additional ConfigDataProperties tests
  Fix typo in ConfigDataPropertiesTests

Closes gh-27017

Add more `isActive` tests to cover negative cases.

See gh-27017

See gh-27017

See gh-15808

Update `RepackageMojo` and supporting classes so that `exclusions`
on the repackage goal apply to both the contributed libraries and any
existing jar entries already contained in the original war.

Prior to this commit, exclusions would apply to contributed jars (for
example, those in `WEB-INF/lib-provided`) but not jars that were
packaged directly into `WEB-INF/lib` by the war plugin

Fixes gh-15808
Co-authored-by: Phillip Webb <pwebb@vmware.com>

See gh-27044

Closes gh-26820

Closes gh-27044

Closes gh-27014

Closes gh-26964

Closes gh-27034

Closes gh-27033

Closes gh-27032

Closes gh-27031

Closes gh-26963

Closes gh-27013

Closes gh-26962

* gh-26937:
  Polish "Update docs to use @SpringBootConfiguration not @Configuration"
  Update docs to use @SpringBootConfiguration not @Configuration

Closes gh-26937

See gh-26937

See gh-26937

See gh-27014

See gh-27013

* pr/26975:
  Document uuid support in RandomValuePropertySource

Closes gh-26975

See gh-26975

Closes gh-26965

Effectively revert commit 0da0d2d4 so that the `resolveProfileSpecific`
method of `ConfigDataLocationResolver` is again called when resolving
imports declared in a profile-specific file.

Fixes gh-26960

This reverts commit ce242702.

See gh-26983

Previously, a project with a dependency on Spring Boot's configuration
processor would fail to build when the configuration cache is enabled
due to it accessing the Project during task execution.

Instead of accessing the project during task execution, this commit
updates the code to retrieve the resource locations from the matching
source set in advance. The locations are then stored in the action
that configures the compile task when needed.

Closes gh-26880