Apache HttpClient - Retry-After header

An开发者_JAVA百科y idea how apache http client handles Retry-After header ? Apache has given default retry handler implementation, but I am not able to see any retry header based logic there. if it does not handles the retry header, whats the proper way to implement it. (date parsing and sleep logic)

I found following link where we can see sample implementation for handling retry header

https://issues.apache.org/jira/browse/SHINDIG-1218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel