springloaded isn't required in any of the samples, yet some of them
make use of it without being a springloaded-specific sample. This
is creating the false impression that springloaded is necessary in
cases where it's not.

Closes gh-5524

This commit moves the Jest auto-configuration from `spring.jest` to
`spring.elasticsearch.jest`

Closes gh-6032

Improve startup times (although not by much) by adding more background
pre-initializers and lazily evaluating the whitelabel SpEL view.

See gh-6177

* pr/6202:
  Remove unnecessary constructor

Closes gh-6202

Closes gh-6109

Existing apps get a NoSuchMethodError before this change because
they were compiled expecting a different signature for the
deprecated FilterRegistrationBean constructor.

The upgrade to Hibernate 5.2.0.Final has provide to be too
problematic to live with. It requires Java 8, is incompatible with
a number of other projects in the Hibernate ecosystem, and it's
unclear for how long it will be maintained. We'd previously used
Hibernate 5.1.0.Final but its maintenance is also unclear with
Hibernate 5.1.1.Final being more than 3 months overdue.

This commit drops back to Hibernate 5.0.9.Final. This has a few
advantages:

- It's Java 7 compatible
- It's had some time to mature and should be reasonably free of
  regressions for those moving from 4.3.x
- It's used in both Wildfly and JBoss EAP so there's a fair chance
  that it will continue to be maintained.

Closes gh-6198

See gh-6197

When a custom management.port is used, the child context is configured
with an EmbeddedServletContainerFactory bean that has the same class
as the parent context’s EmbeddedServletContainerFactory bean. This
ensures that the child context uses the same type of embedded container
as its parent when there are multiple embedded containers on the
classpath. It also causes a failure when the custom
EmbeddedServletContainerFactory subclass cannot be instantiated, for
example because it’s an anonymous inner-class.

This commit improves the diagnostics so that we fail fast with an
information exception message when we detect that the embedded servlet
container factory bean’s class cannot be instantiated.

Closes gh-6193

Previously, JarURLConnection assumed that that URL with which it was
created would contain the absolute path of the underlying jar file.
This meant that when it was created with a relative URL, it could fail
to find an entry or throw a StringIndexOutOfBoundsException.

This commit updates the logic for normalizing the input URL so that
both absolute and relative URLs are supported.

Closes gh-6109

* pr/6191:
  Update libraries supported by jsf-spring-boot-starter

Closes gh-6191

See gh-5330

See gh-2893

Closes gh-2893

See gh-4730

Following the upgrade to Tomcat 8.5, Jetty became the only container
that sends a Server header by default. This commit updates the factory
for Jetty to disable the default Server header bringing it into line
with Tomcat and Undertow.

All three containers continue to support server.server-header which
can be used to configure a custom server header.

Closes gh-4730

Closes gh-6101

Closes gh-6190

See gh-6164

This commit changes the default version of Tomcat to 8.5.3 while
also retaining support for Tomcat 8.0 and 7.0. The main difference
in 8.5 is that the ServerSocketFactory abstraction that allowed the
TrustStore and KeyStore to be configured programatically no longer
exists. This logic has been replaced with the use of a custom URL
protocol (springbootssl) that provides access to the key store and
trust store of an SslStoreProvider. In addition to working with 8.5,
this approach has the advantage of also working with 8.0 and 7.0.

Closes gh-6164

This commit adds `@AliasFor` meta-data to annotations that declare an
alias attribute.

`@ConditionalOnProperty` and `@AutoconfigureRestDocs` were not migrated
due to the use of `AnnotationMetadata#getAnnotationAttributes`.

Closes gh-5187

* pr/6188:
  Reuse objects in JsonParser implementations

Closes gh-6188