Force the uicalvinsys EventSource singleton to be instantiated
@@ -24,6 +24,7 @@ import logging
from calvin.calvinsys import Sys as CalvinSys
from calvin.runtime.north.calvinsys import get_calvinsys
+import calvin.runtime.south.plugins.ui.uicalvinsys
from calvin.runtime.north import actormanager
from calvin.runtime.north import replicationmanager
from calvin.runtime.north import appmanager
