Apache HttpClient 5.1 doesn't cope with Jetty 10 sending
SETTINGS_ENABLE_CONNECT_PROTOCOL in the settings frame. It also appears
to be unstable when using Undertow, resulting in a failure and
"UT005032: Listener not making progress on framed channel, closing
channel to prevent infinite loop" being logged on the server-side.
Local experimentation suggests that Jetty's HTTP/2 client is more
robust and that it does not trigger the problem with Undertow. It also
fixes the problem with SETTINGS_ENABLE_CONNECT_PROTOCOL when testing
against Jetty 10 so this commit updates the tests to use Jetty's client.
Closes gh-26040
Previously, the embedded database connection that would be used
could only be controlled via the classpath. If multiple embedded
database dependencies were present, it wasn't possible to control
the one that the auto-configured would use. It also wasn't possible
to disable auto-configuration of an embedded database.
This commit introduces a new configuration property,
spring.datasource.embedded-database-connection. It can be set to
one of the values of the EmbeddedDatabaseConnection enum to control
the auto-configuration of an embedded database. Setting it to none
will disable the auto-configuration and ensure that an external
database is used instead.
Closes gh-23412
This commit removes `org.springframework.data.annotation.Persistent`
from the annotation types used for MongoDB entity scanning to align
with Spring Data MongoDB.
Fixes gh-25797
This commit harmonizes our auto-configuration so that default converters
are configured the same way ElasticsearchConfigurationSupport does.
Closes gh-25087