java.lang.RuntimeException: Execution failed
	at ptolemy.moml.MoMLSimpleApplication$UnloadThread.run(MoMLSimpleApplication.java:402)
Caused by: ptolemy.kernel.util.IllegalActionException: Exceptions occurred during wrapup:
ptolemy.kernel.util.IllegalActionException: The fire() method of this actor was never called. Usually, this is an error indicating that starvation is occurring.
  in .MQTTPubSub.Test

  in .MQTTPubSub.DE Director
Because:
The fire() method of this actor was never called. Usually, this is an error indicating that starvation is occurring.
  in .MQTTPubSub.Test
	at ptolemy.actor.Director.wrapup(Director.java:1736)
	at ptolemy.domains.de.kernel.DEDirector.wrapup(DEDirector.java:1527)
	at ptolemy.actor.CompositeActor.wrapup(CompositeActor.java:2755)
	at ptolemy.actor.Manager.wrapup(Manager.java:1530)
	at ptolemy.actor.Manager.execute(Manager.java:407)
	at ptolemy.actor.Manager.run(Manager.java:1263)
	at ptolemy.actor.Manager$PtolemyRunThread.run(Manager.java:1933)
Caused by: ptolemy.kernel.util.IllegalActionException: The fire() method of this actor was never called. Usually, this is an error indicating that starvation is occurring.
  in .MQTTPubSub.Test
	at ptolemy.actor.lib.NonStrictTest.wrapup(NonStrictTest.java:394)
	at ptolemy.actor.Director.wrapup(Director.java:1722)
	... 6 more