From: Joel VanderWerf <vjoel@...>
Date: 2003-08-25T05:28:00+09:00
Subject: Re: fxRuby and errors

Fredrik Jagenheim wrote:
> If 'runTrueApplication' raises something I'd think would be considered
> a 'fatal' error, namely that it tries to call a method that doesn't
> exist (raises NoSuchMethod, IIRC) I don't get to know about that
> error. Only after I kill the application by closing the window I get
> the error message printed to stderr. Interrupting the process with
> Ctrl-C just kills the program and nothing gets printed out.
> 
> This leads me to think that I've missed something important about how
> Threads and Exceptions play together. Could someone please straight
> this out for me? I guess thread.join is the key? It collects all
> thrown exceptions? Is there a way for me to know about thrown errors
> /before/ thread.join? Apart from;

See if this helps:

Thread.abort_on_exception = true

(assign this at the start of your code). Otherwise, threads other than 
the main thread die silently.

Or you could catch exceptions in your thread itself.