Example why to use RestTemplateBuilder instead of create your own instance of a RestTemplate.
curl http://localhost:8080/firstSleuth distributed tracing is broken:
2019-07-02 21:02:38.117 INFO [-,917abb9dfdaeca7d,917abb9dfdaeca7d,false] 24753 --- [nio-8080-exec-1] c.e.resttemplate.SelfInvokingController : Received call to first, calling second
2019-07-02 21:02:38.152 INFO [-,e317f161c3b6f5bf,e317f161c3b6f5bf,false] 24753 --- [nio-8080-exec-2] c.e.resttemplate.SelfInvokingController : Received call to second
2019-07-02 21:02:38.168 INFO [-,917abb9dfdaeca7d,917abb9dfdaeca7d,false] 24753 --- [nio-8080-exec-1] c.e.resttemplate.SelfInvokingController : Received response from second: hello from second
Metrics for http client requests (requests done by the RestTemplate) are not working: