While executing a thirdParty API call using jakarta ClientBuilder, I am getting the following exception

(vert.x-eventloop-thread-1) A blocking operation occurred on the IO thread. This likely means you need to use the @io.smallrye.common.annotation.Blocking annotation on the Resource method, class or jakarta.

Here is the following snipet code which produces a error:

  client = ClientBuilder.newBuilder().register(JacksonFeature.class).build();

  client.target(ConfigHelper.wenBaseUrl)
                    .path(ConfigHelper.wenInfoOAuth)
                    .request()
                    .header(AUTHORIZATION, "Bearer " + userToken).get();

I tried configuring @Blocking @nonBlocking on the controller level and still the same error.