Well, it seems that in order to have all applications white-listed, without causing problems the functioning of regular indicator-applets, the command should be:
gsettings set com.canonical.Unity.Panel systray-whitelist "[ 'JavaEmbeddedFrame', 'all' ]"
Well, it seems that in order to have all applications white-listed, without causing problems the functioning of regular indicator-applets, the command should be:
gsettings set com.canonical. Unity.Panel systray-whitelist "[ 'JavaEmbeddedFr ame', 'all' ]"