class Configuration {}class ServiceRegistry {ServiceComponent cachedServiceComponent;void register(ServiceComponent component) {this.cachedServiceComponent = component;}}class ServiceComponent {final Configuration config;ServiceComponent(ServiceRegistry registry) {registry.register(this);// Inject some work to increase likelihood// of an observable data racefor (int i = 0; i < 1_000_000; i++) {Thread.yield();}this.config = new Configuration();}}public class Main {public static void main(String[] args) throws InterruptedException {for (int i = 0; i < 100_000; i++) {ServiceRegistry registry = new ServiceRegistry();Thread t1 = new Thread(() -> {new ServiceComponent(registry);});Thread t2 = new Thread(() -> {if (registry.cachedServiceComponent != null &®istry.cachedServiceComponent.config == null) {System.out.println("The cachedServiceComponent introduced an observable race!");System.exit(0);}});t1.start();t2.start();t1.join();t2.join();}}}
