I’m experiencing a really weird thing.

public abstract class AbstractController {

    @EventListener
    void onApplicationEvent(final ReactiveWebServerInitializedEvent event) {
        webServerPort = event.getWebServer().getPort();
        log.debug("webServerPort: {}", webServerPort); // 8080 <<<<<<<<<<<<<<<
    }


    @Getter
    private int webServerPort;
}

@Validated // <<<<<<<<<<<<<<<<<<<<<<< !!!!!!!!!!!!!!!!!!!!!
@RestController
class MyController extends AbstractController {

    @GetMapping(path = "/")
    Mono<Void> readStates(final ServerHttpResponse response) {
        log.debug("webServerPort: {}", getWebServerPort()); // 0 <<<<<<<<<<<<

        ....
    }    
}

In the onApplicationEvent method, the webServerPort set with 8080 yet it’s 0 on the readStates method.

How come this happen?

I search all places that write the webServerPort field and the onApplicationEvent method is the only one.