Constructor calls like new AtomicInteger(0) cause a volatile write that
can be saved in cases where the constructor parameter is the default
value.
See gh-23575
Previously, the default servlet was registered automatically when using
embedded Jetty, Tomcat, or Undertow. However, it is not used by the
majority of applications where Spring MVC's DispatcherServlet will be
the only servlet that's needed. As such configuring the default servlet
was wasting CPU and memory.
This commit changes the default for registering the default servlet to
false. It can be re-enabled by setting
server.servlet.register-default-servlet=true.
Closes gh-22915
Previously, spring.flyway.init-sqls was only applied to Flyway's
configuration if Flyway was being configured to create the DataSource.
If Flyway was being configured to use an existing DataSource, init-sqls
was not applied. This is a hangover from when the init SQLs support was
introduced. At that time, Flyway only supported SQL to initialize the
connection when it was creating the DataSource. Flyway 5.2 added init
SQL support no matter how Flyway's DataSource was configured.
This commit updates FlywayAutoConfiguration to always apply the
init-sqls property to Flyway's configuration. The property's
documentation does not describe the current limitation so this change
should align the behaviour with what the documentation leads people to
expect.
Fixes gh-23392
Refactor `BootstrapRegistry` support following initial prototype work
with the Spring Cloud team.
This update splits the `BootstrapRegistry` API into `BootstrapRegistry`,
`BootstrapContext` and `ConfigurableBootstrapContext` interfaces and
moves it to the same package as `SpringApplication`.
A new `Bootstrapper` interface has been introduced that can be added
to the `SpringApplication` to customize the `BootstrapRegistry` before
it's used.
Closes gh-23326
Remove casting "timestamp" to `java.util.Date` in
`ErrorMvcAutoConfiguration` as the cast is not necessary and it
prevents other types (e.g. `java.time`) from being used.
See gh-23256