@Override
		public void run() {
			TimerCallback c;
			synchronized (GhidraSwinglessTimer.this) {
				c = callback;
				if (!repeats) {
					timerTask.cancel();
					timerTask = null;
					decrementCount();
				}
			}
			if (c != null) {
				c.timerFired();
			}
		}
Returns true if the timer is running.
Ghidra/Framework/Generic/src/main/java/generic/timer/GhidraSwinglessTimer.java