这个异常该怎么解决
serachAppTypeList(PageRequestBean<AppboxAppType> requestBean,Model model){
Integer count = appboxAppTypeService.findCount();
Pagination pagination = new Pagination(count,requestBean.getPageSize(), requestBean.getPage());
Integer totalPage = pagination.getTotalPage();
ArrayList<RespAPPTypeVo> respAPPTypeVo = appboxAppTypeService.findListToPage(pagination);
Pagination pagination = new Pagination(count,requestBean.getPageSize(), requestBean.getPage());报空指针异常变成这样就好了怎么解决Pagination pagination = new Pagination(count)