Throw exception to parent method in webclient - spring-boot

Question

Is there is a way to throw the exception to parent method in webclient. I am not able to throw the exception to parent method getStores(). What is the way to throw the exception to parent method in below code.
For example:
#Override
public Mono<Stores> getStores(String id) {
Mono<Stores> stores = null;
try {
WebClientRequest<Stores> webClientRequest = new WebClientRequest<>();
webClientRequest.setContentType("application/json");
webClientRequest.setEndPoint("http://localhost:8090/api/stores/eee");
webClientRequest.setPathParam(id);
stores= webClient.getAsynchronousWebClient(webClientRequest, Stores.class);
} catch(MtampWebClientException e) {
System.out.println("Hello");
}
return stores;
}
public <T> Mono<K> getAsynchronousWebClient(WebClientRequest<T> webClientRequest, Class<K> clazz) {
ResponseSpec retrieve = performWebRequest(webClientRequest);
return retrieve.bodyToMono(clazz).doOnNext(response -> webClientResponse(webClientRequest, response));
}
private <T> ResponseSpec performWebRequest(WebClientRequest<T> webClientRequest) {
WebClient client = webClientBuilder();
LinkedMultiValueMap<String, String> map = setHeaders(webClientRequest);
Consumer<HttpHeaders> consumer = it -> it.addAll(map);
ResponseSpec retrieve;
if (null != webClientRequest.getPathParam()) {
retrieve = client.get().uri(webClientRequest.getEndPoint() + "/" + webClientRequest.getPathParam())
.headers(consumer).retrieve();
} else if (null != webClientRequest.getQueryParam()) {
LinkedMultiValueMap<String, String> queryMap = new LinkedMultiValueMap<>();
webClientRequest.getQueryParam().entrySet().stream().forEach(e -> queryMap.add(e.getKey(), e.getValue()));
retrieve = client.get()
.uri(uriBuilder -> uriBuilder.path(webClientRequest.getEndPoint()).queryParams(queryMap).build())
.headers(consumer).retrieve();
} else {
retrieve = client.get().uri(webClientRequest.getEndPoint()).headers(consumer).retrieve();
}
return retrieve;
}
private WebClient webClientBuilder() {
HttpClient httpClient = HttpClient.create().option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 5000)
.responseTimeout(Duration.ofMillis(5000))
.doOnConnected(conn -> conn.addHandlerLast(new ReadTimeoutHandler(5000, TimeUnit.MILLISECONDS))
.addHandlerLast(new WriteTimeoutHandler(5000, TimeUnit.MILLISECONDS)));
return WebClient.builder().filter(ExchangeFilterFunction.ofResponseProcessor(this::errorHandler))
.clientConnector(new ReactorClientHttpConnector(httpClient)).build();
}
public Mono<ClientResponse> errorHandler(ClientResponse clientResponse) {
if (clientResponse.statusCode().is5xxServerError()) {
return clientResponse.bodyToMono(String.class).flatMap(errorBody -> Mono
.error(new MtampWebClientException(clientResponse.statusCode().toString(), errorBody)));
} else if (clientResponse.statusCode().is4xxClientError()) {
return clientResponse.bodyToMono(String.class).flatMap(errorBody -> Mono
.error(new MtampWebClientException(clientResponse.statusCode().toString(), errorBody)));
} else {
return Mono.just(clientResponse);
}
}