Hi Hao,
Daniel is right, It sounds that your issue is not related to the Jenkins Infrastructure project.
I am moving your ticket to the 'Jenkins' Jira project.
Quote from 'How to report an issue'
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You need to register an account if you haven't already. Then, just select Create Issue on the JIRA home page.
For Project select:
Jenkins for general issues with Jenkins, <---
Security Issues if you want to report a security issue privately, or
Infrastructure if you're reporting a bug with the Jenkins web site, wiki, or any other services run by the Jenkins project.
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This is the issue tracker of the Jenkins project infrastructure. Unless there are problems on ci.jenkins.io, we don't care.
If this should be a Jenkins bug report, please follow the instructions at https://wiki.jenkins-ci.org/display/JENKINS/How+to+report+an+issue