public void hide() {

		if (animationRunner != null) {
			animationRunner.stop();
			animationRunner = null;
		}

		if (timerMonitor != null) {
			timerMonitor.cancel();
			timerMonitor = null;
		}
	}
Hides any message being displayed.  This can be called even if the message has been hidden.
Ghidra/Framework/Docking/src/main/java/docking/util/GGlassPaneMessage.java