This commit adds new reference documentation sections about WebFlux
support in Spring Boot:
* Support for multiple HTTP servers (gh-8403)
* `CodecCustomizer` and JSON codecs (gh-8897, gh-9166)
* `WebClient.Builder` auto-configuration (gh-9522)
* Tests with `@WebFluxTest` (gh-8401)
* `WebTestClient` auto-configuration (gh-8399)
* Support for Thymeleafi and Mustache templating (gh-8124, gh-8648)
* Choose another HTTP server with WebFlux (closes gh-9690)
Now that Google actually supports arbitrary docker container
execution in app engine, we can provide some more guidance
on how to use it in the "deployment" section.
Closes gh-9585
Elastic have announced [1] that embedded Elasticsearch is no longer
supported. This commit brings us into line with that announcement by
removing the auto-configuration that would create an Elasticsearch
Node and NodeClient.
To use the Elasticsearch auto-configuration, a user must now provide
the address of one or more cluster nodes
(via the spring.elastisearch.cluster-nodes property) which will then
be used to create a TransportClient.
See gh-9374
[1] https://www.elastic.co/blog/elasticsearch-the-server
This commit reworks the property to be an enum with the list of
supported listener types rather than a boolean that flip to a
batch listener.
Closes gh-9448
Remove test-jar artifacts from Maven projects and relocate classes. The
majority of utilities now live in the `spring-boot-testsupport` module.
This update will help us to deploy artifacts using the standard Maven
deploy plugin in the future (which doesn't support the filtering of
individual artifacts).
Fixes gh-9493
Prior to this commit, custom `ProtocolResolvers` set on the
`ApplicationContext` were lost when Devtools is used as the customized
`ResourceLoader` did not copy any customization made to the default
resource loader.
This commit makes sure to copy any `ProtocolResolver` set on the context.
Closes gh-9331
