Java Spring中的WebRequest在sonar qube中引发漏洞

在我的代码中，我实现了ResponseEntityExceptionHandle来处理异常

当我重写handleMissingServletRequestParameter方法时。Sonar qube抱怨可变WebRequest请求存在漏洞问题

方法定义

 @Override
 protected ResponseEntity<Object> handleMissingServletRequestParameter(
  final MissingServletRequestParameterException ex, final HttpHeaders 
 headers,
  final HttpStatus status, final WebRequest request) {

final String error = ex.getParameterName() + " parameter is missing";
final ExceptionResponse exceptionResponse =
    new ExceptionResponse(HttpStatus.BAD_REQUEST, ex.getLocalizedMessage(), error);
return constructResponseEntity(exceptionResponse, headers, request, ex);

如何解决这个问题

[request] not sanitized with standard sanitization methods: normalize, 
encode [Note: As applicable, validate class member variables of type String, 
StringBuffer, CharSequence]