resilience4j-retry:1.7.1: no reintentar conexión de websocket

Estoy tratando de conectarme a un punto final remoto de websocket (dentro de una aplicación spring boot), y si arroja una excepción, utilizo resilience4j-retry v1.7.7 con JDK 8 para reintentar la conexión. Sin embargo, resilience4j-retry intenta conectarse una vez y si falla, no reintentar. ¿Qué he hecho mal, la conexión se llama en ApplicationReadyEvent?

    @Autowired
    private WsConnector connector;

    @Override
    public void onApplicationEvent(ApplicationReadyEvent event) {
        RetryConfig config = RetryConfig.custom()
            .maxAttempts(5)
            .waitDuration(Duration.ofSeconds(5))
            .build();

        RetryRegistry registry = RetryRegistry.of(config);
        Retry retry = registry.retry("retryableSupplier", config);

        CheckedFunction0<string> retryableSupplier = Retry.decorateCheckedSupplier(retry, connector::startConnection);
        try {
            System.out.println("reintentando " + retryableSupplier.apply());
        } catch (Throwable throwable) {
            throwable.printStackTrace();
        }

        Retry.EventPublisher publisher = retry.getEventPublisher();
        publisher.onRetry(event1 -> System.out.println(event1.toString()));
        publisher.onSuccess(event2 -> System.out.println(event2.toString()));
    }

java
@Service
public class WsConnector {
public String startConnection() throws Exception {
WebSocketContainer container = ContainerProvider.getWebSocketContainer();
WSClient client = new WSClient();
container.connectToServer(client, new URI("ws://viewpoint:8080/ping"));
return "Conectado";
}
}