code: protected String getDetailedErrorMessage(String message) {
  		StringBuilder sb = new StringBuilder(message).append("\n");
  		sb.append("HandlerMethod details: \n");
  		sb.append("Bean [").append(getBeanType().getName()).append("]\n");
  		sb.append("Method [").append(getBridgedMethod().toGenericString()).append("]\n");
  		return sb.toString();
  	}
docs: Adds HandlerMethod details such as the controller type and method signature to the
  given error message.
  @param message error message to append the HandlerMethod details to