Update reference documentation to use one sentence per line formatting
as recommended by the Asciidoctor team.

Closes gh-12445

* gh-17976:
  Use exec when launching the JVM in CLI's shell script

Closes gh-17976

Previously, when the Spring Boot CLI ran the Java command line for an
application it did a straight invocation which suppressed propagation of
signals to the JVM in certain circumstances (e.g within Docker containers).

This change prepends the command with exec which causes the Java process to
replace the script process in a shell ensuring that signals are propagated to
the Java process without suppression.

See gh-17976
Signed-off-by: Ben Hale <bhale@pivotal.io>

* gh-17984:
  Test the Gradle Plugin against Gradle 5.6.1

Closes gh-17984

See gh-17984

Closes gh-17984

Previously, MetaInfResourceManager that we use with Undertow to serve
static resources from jar's META-INF/resources did not correctly
handle characters in the path that should be percent-encoded when
used in a URL.

This commit updates MetaInfResourceManager to encode the path before
it is used to create a URL. Prior to this encoding, encoded slashes
(%2F) are decoded as, unlike other encoded characters in the request's
URL, encoded slashes are not decoded prior to calling the
ResourceManager.

Fixes gh-17853

This commit also changes the request matcher for MVC
endpoints to use an AntPathRequestMatcher instead of an
MvcRequestMatcher. The endpoint is always available
under the mapped endpoint path and this way the same matcher
can be used for both MVC and Jersey.

Fixes gh-17912
Co-authored-by: Phillip Webb <pwebb@pivotal.io>

* pr/17968:
  Fix Undertow access log dir property name in doc

Closes gh-17968

See gh-17968

Move management `ErrorPage` registration from the
`WebMvcEndpointChildContextConfiguration` to
`WebMvcEndpointChildContextConfiguration` and only add it when the
error controller is registered.

Fixes gh-17938

* pr/17952:
  Polish "Configure Issuer Validator for Resource Server"
  Configure Issuer Validator for Resource Server

Closes gh-17952

See gh-17952

See gh-17952

Fixes gh-17695

Previously, when spying on a scoped bean the creation of the spy
would be performed using the scoped proxy. This would result in
the spy being unable to spy on any of the target bean's methods as
the scoped proxy's implementations of those methods would be final.

This commit updates MockitoPostProcessor so that the creation of the
spy and injection of the @SpyBean-annotated field is performed using
the scoped target. The scoped target has not be proxied so this
allows Mockito to spy on all of its methods.

Closes gh-17817

The versions of Jackon's bom and the versions of Jackson are often
not the same. For example, at the time of writing, the latest bom
version is 2.9.9.20190807 but the latest version of Jackson's core
is 2.9.9 and the latest version of Jackson's databind is 2.9.9.3.

spring-boot-dependencies using a property, jackson.version, to control
the version of jackson-bom that is imported. To make it clear that the
version property controls the version of Jackson's bom and not of
Jackson itself, this commit deprecates jackson.version in favour of
a new jackson-bom.version property.

An additional benefit of this change is that it addresses a problem
when using Gradle and the dependency management plugin. Jackson's bom
uses a jackson.version property to control the version
of core Jackson modules. This names clashes with the name of the
property used by spring-boot-dependencies. Specifying a custom
jackson.version to control the version of the bom that is imported
would also have the unwanted side-effect of customizing the version of
the core Jackson modules declared in Jackson's bom.

Fixes gh-17808

Closes gh-17935

Fixes gh-17927

Closes gh-17905

* pr/17875:
  Remove redundant code

Closes gh-17875

See gh-17875

* pr/17861:
  Map non-null LDAP properties

Closes gh-17861

The userDn and password in LdapContextSource are not nullable. The
default values for userDn and password in LdapProperties are null. When
the values are set to null there will eventually be a
NullPointerException during
AbstractContextSource#setupAuthenticatedEnvironment since HashTable
doesn't allow null for values.

See gh-17861

* pr/17805:
  Polish "Set up SpringLiquibase beans' dependencies by type rather than name"
  Add missing javadoc
  Set up SpringLiquibase beans' dependencies by type rather than name

Closes gh-17805

See gh-17805

See gh-17805

See gh-17805

* gh-17876:
  Test the Gradle Plugin against Gradle 5.6

Closes gh-17876

See gh-17876

* pr/17780:
  Polish "Expand documentation on remote devtools"
  Expand documentation on remote devtools

Closes gh-17780

See gh-17780

See gh-17780

Fixes gh-17843

Closes gh-12874

Closes gh-17842

Closes gh-17698

Closes gh-12874

Closes gh-17835

* pr/17835:
  Fix syntax errors in docs

Closes gh-17835