If you find this exception-shifting behavior troubling, please open a ticket.

Could you explain why introducing the begin/rescue pair that is good programming practice?

Matt

On Mar 13, 2011, at 6:31 PM, Morgan Schweers wrote:

Greetings,
Today I Learned :) if a thread throws an exception that isn't rescued by the top of the thread, it'll crash the app's main thread with 'Program received signal:  “SIGABRT”.'

That's been plaguing me since I started doing MacRuby development; every time I tried to start up multiple threads, the app became incredibly fragile and, unlike the main thread, it wouldn't show ruby traces.

Now I just wrap threads in begin/rescue blocks, and I'm all good.  Good programming practice anyway, but the failure mode is unobvious if you don't.

Hopefully this helps someone else!

--  Morgan

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