SensorSim is not terminated properly

[wiwengweng]

Hi, I try this simulator but found if device number reaches for example 50, the SensorSim is not terminated when the main thread is shutdown.

here's some logs:

Shutdown all Threads
	Updating sensor data
	Writing Output
		 Getting new value and putting on queue
	Updating sensor data
	Writing Output
		 Getting new value and putting on queue
	Updating sensor data
	Writing Output
		 Getting new value and putting on queue
	Updating sensor data
	Writing Output
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue
		 Getting new value and putting on queue

and some of the cvs files will not close properly with data, only empty files created.