Showing a Dialog in handleErrorResponseCode causes a EDT violation but not in addResponseCodeListener

[cubiq1]

Hi there,

Why is it when I show an error Dialog in ConnectionRequest's handleErrorResponseCode method I get an EDT violation whereas when I add a response code listener to the ConnectionRequest and show the Dialog there, things are fine?

For example, EDT violation:

        // When HTTP response received (not 200 OK or redirect)
        @Override
        protected void handleErrorResponseCode(int code, String message) {

            // Show dialog -> EDT violation
            Dialog.show("Error", "Code: " + code, "OK", null);
        }

No EDT violation:

        // When HTTP response received (not 200 OK or redirect)
        r.addResponseCodeListener(new ActionListener() {

            public void actionPerformed(ActionEvent evt) {

                NetworkEvent n = (NetworkEvent) evt;

                // Show dialog -> No EDT violation
                Dialog.show("Error", "Code: " + n.getResponseCode(), "OK", null);

            }
        });

Thanks

[Shai Almog]

Hi,
all web callback methods are made on the network thread except for postResponse(). So showing a dialog is illegal.
Listeners are always normallized to the EDT.

[cubiq1]

Hi, thanks for the explanation. It makes perfect sense.