Closes gh-6817

* pr/6815:
  Polish `HealthEndpoint` javadoc

Closes gh-6815

See gh-2645

Closes gh-6775

Post-processing of mocked beans causes a number of problems:

 - The mock may be proxied for asynchronous processing which can cause
   problems when configuring expectations on a mock (gh-6573)
 - The mock may be proxied so that its return values can be cached or
   so that its methods can be transactional. This causes problems with
   verification of the expected calls to a mock (gh-6573, gh-5837)
 - If the mock is created from a class that uses field injection, the
   container will attempt to inject values into its fields. This causes
   problems if the mock is being created to avoid the use of one of
   those dependencies (gh-6663)
 - Proxying a mocked bean can lead to a JDK proxy being created
   (if proxyTargetClass=false) as the mock implements a Mockito
   interface. This can then cause injection failures as the types don’t
   match (gh-6405, gh-6665)

All of these problems can be avoided if a mocked bean is not
post-processed. Avoiding post-processing prevents proxies from being
created and autowiring from being performed. This commit avoids
post-processing by registering mocked beans as singletons as well as
via a bean definition. The latter is still used by the context for type
matching purposes.

Closes gh-6573, gh-6663, gh-6664

This commit adds `JdbcTemplateAutoConfiguration` to the list of auto-
configurations that are applied with `DataJpaTest`. This effectively
allows to inject a `JdbcTemplate` in any `@DataJpaTest` test.

Closes gh-6802

Closes gh-6780

Closes gh-6668

Closes gh-6798

Closes gh-1309

Closes gh-3592

* gh-6399:
  Polish "Provide dependency management for Querydsl"
  Provide dependency management for Querydsl

Closes gh-6399

Closes gh-6777
See gh-6399

Closes gh-6765

Fix mistake introduced during forward merge

* gh-6759:
  Polish “Avoid null handler package in JarFile protocol handler registration”
  Avoid null handler package in JarFile protocol handler registration

See gh-6759

Rework commit 4a69755b to remove the need for the ApplicationInfo class.
The updated code now uses the auto-configuration class to compute a
default persistence unit root location

Closes gh-6635

Closes gh-6759

Closes gh-6762

Previously, the HAL browser endpoint did not consider the dispatcher
servlet’s path (server.servlet-path) when redirecting to browser.html
or when updating the API entry point in the served HTML.

This commit moves to using ServletUriComponentsBuilder to build the URI
for the redirect and the path for the entry point. In the interests of
simplicity the logic that sometimes redirected and sometimes forwarded
the request has been changed so that it will always perform a redirect.

Closes gh-6586

This commit improves the run goal to automatically fork the process when
devtools is present and log a warning when fork has been disabled via
configuration since devtools will not work on a non-forked process.

We don't want devtools to kick in for integration tests so the logic has
been placed in `RunMojo` requiring a couple of protected methods to
override.

Closes gh-5137

Closes gh-6778

Closes gh-6770

See gh-6792

Closes gh-6788

Update @MockBean and @SpyBean to support field generics. Prior to this
commit the following fields would fail with a "Duplicate mock
definition" exception:

  @MockBean
  private IdentityProvider<PasswordIdentity> passwordIdentityProvider;

  @MockBean
  private IdentityProvider<Oauth2Identity> oauth2IdentityProvider;

Fixes gh-6602