I'm getting to stackoverflow after visiting https://ask.allseenalliance.org/questions/
I cannot access to https://git.allseenalliance.org/gerrit/core/ The page reports 502 Bad Gateway error and X.509 certificate has expired on 12/03/2018 and has not been renewed.
Is the Alljoyn project dead or the code repository has been moved to other location?
Allseen Alliance no longer exists as an entity. It was merged with Open Connectivity Foundation (OCF). You can find the source code on the AllJoyn Open Source Project GitHub page.