SupervisorController.java

@GetMapping(value = "/supervisors/{id}", produces = MediaTypes.HAL_JSON_VALUE)
public ResponseEntity<Resource<Supervisor>> findOne(@PathVariable Long id) {

	Resource<Manager> managerResource = controller.findOne(id).getBody();
	Resource<Supervisor> supervisorResource = new Resource<>(
		new Supervisor(managerResource.getContent()),
		managerResource.getLinks());

	return ResponseEntity.ok(supervisorResource);
}