when taking a pageable response value SpotBugs has NP_NULL_ON_SOME_PATH_FROM_RETURN_VALUE

Question

I have spotbug dependency in maven and after running the mvn install command. I see the following error

[line 111]Known null at TaskProcessListener.java:[line 111] NP_NULL_ON_SOME_PATH_FROM_RETURN_VALUE

the above error pointing this code

    private ResponseBody convertPageToList(ResponseEntity<ResponseUser> response) {
    ResponseBody responseBody=null;
    if(response.getBody()!=null)
        responseBody=response.getBody().getResponseBody();
        if(responseBody!=null)
        return responseBody;
    return null;
}

and the content of ResponseBody class is:

   public class ResponseBody<T>{
    
        @JsonProperty("users_page")
        PaginatedResponse<T> usersPage;
    }