code: public static <T> Object jsonToObject(String json, Class<T> clas) {
  		ObjectMapper mapper = new ObjectMapper();
  		try {
  			return mapper.readValue(json, clas);
  		} catch (IOException e) {
  			JK.throww(e);
  			return null;
  		}
  	}
docs: Json to object.
  
  @param      <T> the generic type
  @param json the json
  @param clas the clas
  @return the object