A few days ago I had a problem to adding new contact using Java of course to Jitsi SIP client. So, I would like to share with you with this small piece of code :
UtilActivator.getContactListService().createMetaContact(ProtocolProviderService, MetaContactGroup, UserID);
I figured out that adding contact can be executed only when your SIP account is Online (connected to server for instance FreeSWITCH). Thank you very much for your attention ;)
Reference: [1] Jitsi.org [2] jitsi-dev - Create new contact
