Closes gh-7732
See gh-5047

Closes gh-5611

The intent of the test is to:

1. Make a change
2. Sleep for long enough for that change to be picked up
3. Make another change
4. Stop that watcher after 1 further scan has been performed
5. Assert that a further scan was performed by checking that two
   separate sets of changes (step 1 and step 3) have been picked up

Previously, step 2 relied on simply sleeping for a period of time
longer than the polling interval. In reality, the polling interval
is only a minimum time between scans and the actual time between them
depends on thread scheduling, GC pauses, etc. This lead to the
test failing intermittently if the scan didn't happen in a timely
manner.

This commit removes the sleep and replaces it with a while loop that
waits for first change to be picked up. This ensures that the second
change will be detected separately from the first and that two
separate change sets should always be available once the watcher has
stopped.

See gh-7782

Previously, in the DevTools integration tests, portions of a File's
path were used to create the name of a jar entry. On Windows this
resulted in the entry containing \ characters. As a result the
directory structure was incorrect and the classes could not be loaded
from the jar.

This commit ensures that any \ characters are replaced with /
characters.

See gh-7782

Previously, the beans endpoint would only expose the context that
contained the endpoint. This commit updates the endpoint so that
the context that contains the endpoint and all of its ancestors are
exposed.

In a context hierarhcy, the relation ship is child -> parent and there
is no way to navigate from a parent to a child. As a result, any
contexts that are descendants of the context containing the endpoint
are not exposed.

Closes gh-5188

* pr/7997:
  Add Infinispan starter reference

Closes gh-7997

* gh-4902:
  Test that double registration of ServletContextInitializers does not happen
  Avoid double-reg when a Servlet or Filter implements ServletContextInitializer

Closes gh-4902

See gh-4902

* pr/7993:
  Document use of `OpenEntityManagerInViewInterceptor`

Closes gh-7993

Closes gh-7923

Previously, if a failure analyzer threw an exception from its
analyze method, failure analysis would stop.

This commit updates FailureAnalyzers to catch and log any Throwable
thrown by an analyzer and continue to the next available analyzer.

Closes gh-7956

Previously, ErrorPageFilter set the value of
javax.servlet.error.exception_type to be the name of the exception,
(a java.lang.String). This commit changes it to be a java.lang.Class
as required by the Servlet spec.

Closes gh-7925

Previously, OAuth2MethodSecurityConfiguration set the
PermissionEvaluator on the expression evaluator by looking in the
context for a PermissionEvaluator bean. This is unnecessary as
GlobalMethodSecurityConfiguration already does the same thing and does
so after the post-processor in OAuth2MethodSecurityConfiguration has
run. This commit removes the redundant logic and adds tests to check
that both the PermissionEvaluator and the RoleHierarchy are set use
beans in the context.

Closes gh-7979

Closes gh-7864

* pr/7911:
  Fix configure a datasource reference doc link

Closes gh-7911

* gh-7937:
  Update springloaded version to 1.2.6.RELEASE in Maven-related docs

Closes gh-7937

* gh-7937:
  Update springloaded version to 1.2.6.RELEASE in Gradle-related docs

Closes gh-7937

* pr/7907:
  Fix incomplete assertions

Closes gh-7907

Closes gh-7903

Closes gh-7880

Remove the spring-core dependency from the annotation processor.
(cherry-picked from 4cb7d86a)

Fixes gh-7882

Update `ManagementContextConfigurationsImportSelector` to instantiate
classes so that order annotations are respected.

Fixes gh-7814

Update `TestRestTemplate` to handle `BasicAuthorizationInterceptor`s
correctly. Prior to this commit the `BasicAuthorizationInterceptor`
was added directly to the `ClientHttpRequestFactory` rather than
to the `RestTemplate`. This meant that it could not easily be removed
when `TestRestTemplate.withBasicAuth` was invoked.

The `TestRestTemplate` now sets the interceptor on `RestTemplate`
directly and relies on the logic in `InterceptingHttpAccessor` to
add it to the `ClientHttpRequestFactory`.

Fixes gh-7812

See gh-7793

Update `CacheManagerCustomizers` to deal directly with
`ClassCastException` assuming that they are because a customizer is
implemented using a lambda.

Closes gh-7788

Closes gh-7781

Update ClassLoaderFilesResourcePatternResolver to support servlet
resources when it's being used with a WebApplicationContext.

Prior to commit 918e122d a `ResourceLoader` was not added to the
`ApplicationContext`, meaning that servlet resources could be found by
virtue of the protected `getResourceByPath()` method. Following commit
918e122d, the context `ResourceLoader` is set, meaning that all calls
to `getResource` delegate to the `ResourceLoader` and the
`ApplicationContext` methods are not invoked. Since the devtools
`ResourceLoader` wasn't Servlet aware, servlet resources could not
be found.

Fixes gh-7752

Closes gh-7771

* pr/7741:
  Notify BuildContext of changed build-info file