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troubleshooting Question

Attempt to mutate in notification exception

Avatar of allelopath
allelopath asked on
Java
7 Comments1 Solution1535 ViewsLast Modified:
I'm getting an Attempt to mutate in notification exception. I have a class DataStore which holds data with a listener that takes action when data in it has changed. When it sets the data from the DataStore to a GUI component, the exception occurs. The data does make it to the component. This is a Swing thread issue of some sort, I guess.

How should I address this?

JTextField myTextField;
...
public void propertyChange(PropertyChangeEvent event) {
		
	InvisibleChangedComponent invisibleChangedComponent = InvisibleChangedComponent.getInstance();
	final Actions action = invisibleChangedComponent.getAction();

	if (action == Actions.CHANGED) {

	        final DataStore dataStore = DataStore.getInstance();
		String newString = dataStore.getMyString();
		try {
			myTextField.setText(newString);
		}
		catch (Exception e) {
			// Attempt to mutate in notification
		}
}
ASKER CERTIFIED SOLUTION
Avatar of Mick Barry
Mick BarryFlag of Australia imageJava Developer
Commented:
This problem has been solved!
Unlock 1 Answer and 7 Comments.
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