Spring REST, JSON “Can not handle managed/back reference 'defaultReference'” 415 Unsupported Media Type

Question

I am trying to POST to http://localhost:9095/translators from an AngularJS front-end using Spring boot/Spring RestController backend.

I can do a GET and the response

Answer 1

As @Sharppoint said in comments, I solved the mine by removing @JsonManagedReference BUT keep @JsonBackReference.