Removing the actionbar

[Wilsoon7721]

So I have an actionbar with
ActionBarAPI.sendActionBar(p, ChatColor.GREEN + "You are now invisible to players!");

But how would I cancel this actionbar and remove the active actionbar?
Doing something like
ActionBarAPI.sendActionBar(p, "");
Didn't work, the actionbar just disappears for 3 seconds and the old actionbar comes back.