I have following classes.

public abstract class _ApiController {

    @EventListener
    void onApplicationEvent(final ReactiveWebServerInitializedEvent event) {
        webServer = event.getWebServer(); // `this`: SomeApiController$$SPRINGCGLIB@... instance.
    }

    WebServer webServer;
}

@Validated // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< seems make a CGLIB proxy
@RestController
class SomeApiController
        extends _ApiController {

    @GetMapping(path = "/")
    Mono<Void> read(final ServerHttpResponse response) {
        // `this` is not the SomeApiController$$SPRINGCGLIB@...
        // super.webServer is null
    }
}

When the onApplicationEvent method invoked, the this debug instance is a proxy instance
and, when the read method invoked, the proxy’s gone,
and the webServer field is null.

What is the right solution for this?