Spring Boot will auto-detect which `ClientHttpConnector` to use to drive `WebClient`, depending on the libraries available on the application classpath.
For now, Reactor Netty, Jetty RS client and Apache HttpClient are supported.
For now, Reactor Netty, Jetty RS client, Apache HttpClient, and the JDK's HttpClient are supported.
The `spring-boot-starter-webflux` starter depends on `io.projectreactor.netty:reactor-netty` by default, which brings both server and client implementations.
If you choose to use Jetty as a reactive server instead, you should add a dependency on the Jetty Reactive HTTP client library, `org.eclipse.jetty:jetty-reactive-httpclient`.