@Test
void execute() {

    HTTPResponse response = new HTTPResponse(200, Map.of(), new byte[0]);
    when(httpClient.execute(any())).thenReturn(response);
    var request = new TestWebService.TestRequest();
    request.stringField = "12345";
    Object result = webServiceClient.execute(HTTPMethod.PUT, "/api", TestWebService.TestRequest.class, request, void.class);
    assertThat(result).isNull();
}