private void notifyListeners() {
		final ChangeEvent event = new ChangeEvent(this);
		SwingUtilities.invokeLater(() -> {
			for (ChangeListener listener : listeners) {
				listener.stateChanged(event);
			}
		});
	}
Remove format change listener
@param listener the listener
Ghidra/Features/Base/src/main/java/ghidra/app/util/viewer/field/BrowserCodeUnitFormatOptions.java