How to fix issue in Spring mvc trigger: Make sure that exposing this HTTP endpoint is safe here

SonarQube 7.7

how can I fix this rule issue?
Rule:Make sure that exposing this HTTP endpoint is safe here

code:
should replace # to @
#ResponseBody
#PostMapping(value = “/{apiName}”, produces = “application/json;charset=UTF-8”)
public Policy callApi(#PathVariable(“apiName”) String apiName, #RequestBody ParamDomain param, #RequestHeader HttpHeaders headers)