| class  | HttpClientErrorExceptionException thrown when an HTTP 4xx is received. | 
| static class  | HttpClientErrorException.BadRequest | 
| static class  | HttpClientErrorException.Conflict | 
| static class  | HttpClientErrorException.Forbidden | 
| static class  | HttpClientErrorException.Gone | 
| static class  | HttpClientErrorException.MethodNotAllowed | 
| static class  | HttpClientErrorException.NotAcceptable | 
| static class  | HttpClientErrorException.NotFound | 
| static class  | HttpClientErrorException.TooManyRequests | 
| static class  | HttpClientErrorException.Unauthorized | 
| static class  | HttpClientErrorException.UnprocessableEntity | 
| static class  | HttpClientErrorException.UnsupportedMediaType | 
| class  | HttpServerErrorExceptionException thrown when an HTTP 5xx is received. | 
| static class  | HttpServerErrorException.BadGateway | 
| static class  | HttpServerErrorException.GatewayTimeout | 
| static class  | HttpServerErrorException.InternalServerError | 
| static class  | HttpServerErrorException.NotImplemented | 
| static class  | HttpServerErrorException.ServiceUnavailable |