Graceful exception handling in Swing Worker

Question

I am using threading in application through Swing Worker class. It works fine, yet I have a bad feeling about showing an error message dialog in try-catch block. Can it pote

Answer 1

One option is to use SwingUtilities.invokeLater(...) to post the action on the EDT

SwingUtilities.invokeLater(new Runnable(){
    @Override
    public void run(){
        JOptionPane.showMessageDialog(
            Utils.getActiveFrame(),
            msg, 
            "Error", 
            JOptionPane.ERROR_MESSAGE,
            errorIcon);
    }
});

And as you noted, SwingWorker is capable of reporting intermediate results, but you'll need to override process(...), which is called when you invoke publish(...).

Regardless, why not just set a flag if an exception occurs, and if that flag is set, show the dialog in done() since it's executed safely in the EDT?