IllegalArgumentException? Why?

Question

Can anyone explain to me why this error occures, or even better how do I handle it? I can not reproduce it. It is one of those errors that happends once out of a 1000.

B

Answer 1

I've seen this happen when a latent update comes in for a progress dialog that has already been fully or partially dismissed. Either the user is requesting a dismissal at the same time the os is trying to dismiss the view and its already been disconnected from the window or vice versa.

There is a race condition between the code that dismisses the progress window when a button is clicked and the code that dismisses the progress window in another fashion. The mostly likely place to look for this race condition is where your requests for dismissing the windows are put onto the view thread (button handler or a code callback).