I'm sorry. It's another request  sent by chrome automatic, so there is nothing wrong.
Thanks.
 
------------------ 原始邮件 ------------------
发件人: "鲍鱼";<452537773_at_qq.com>;
发送时间: 2014年7月25日(星期五) 中午11:38
收件人: "users"<users_at_jersey.java.net>; 
主题: ContainerResponseFilter  filter function called twice when  there is a 404 request
Hi,all
    Say my url is 
http://a.b.c?uid=123 , so if I visit 
http://a.b.c there will be a 404 error. But I found that ContainerResponseFilter  filter function is called twice , and between them function toResponse  in ExceptionMapper  is called.   Can someone explain it to me?
    Thanks very much.