Invalidate openfire db cache

I need to make a mass change on openfire database (on privacyList & jiveRoster & jiveUser) but dont want to restart the server. (it is not only a chat server, we have a plugin on openfire doing much more things, so dont want to loose data & connected users)

I could not find how to make openfire invalidate database cache without restarting it. Any idea?

the openfire admin page has a page specifically for cache (Sample URL: Select all the caches and clear them.