I am getting "extension (5) should not be presented in certificate_request" when trying to run locally a Java Kubernetes client application which queries the Kubernetes cluster over a lube proxy connection. Any thoughts? Thanks in advance

  ApiClient client = null;
    try {
        client = Config.defaultClient();
        //client.setVerifyingSsl(false);
    } catch (IOException e) {
        e.printStackTrace();
    }
    Configuration.setDefaultApiClient(client);

    CoreV1Api api = new CoreV1Api();
    V1PodList list = null;
    try {
        list = api.listPodForAllNamespaces(null, null, null, null, null, null, null, null, null);
    } catch (ApiException e) {
        e.printStackTrace();
    }
    for (V1Pod item : list.getItems()) {
        System.out.println(item.getMetadata().getName());
    }