apollo-common/src/main/java/com/ctrip/framework/apollo/common/controller/GlobalDefaultExceptionHandler.java/GlobalDefaultExceptionHandler/exception
class GlobalDefaultExceptionHandler:  @ExceptionHandler(Throwable.class)
  public ResponseEntity<Map<String, Object>> exception(HttpServletRequest request, Throwable ex) {
    return handleError(request, INTERNAL_SERVER_ERROR, ex);
  }