Re: NSObjectInaccessibleException

[Richard Frith-Macdonald]

On Thursday, September 18, 2003, at 10:28 PM, Stefan Urbanek wrote:

> Hi,
>
> AgentFarms stopped to work. I am getting this:
>
> /usr/GNUstep/Local/Tools/afsimulator: Uncaught exception 
> NSObjectInaccessibleException, reason: Forwarding message in wrong 
> thread
>
> Were there any forwarding/thread related changes in -base? What does 
> it mean?

It should indicate that code executing in one thread is trying to send 
a message over an NSConnection which was created in another thread, and 
the NSConnection has not had multiple threads enabled.
If you want to use a connection in more than one thread, you should 
call -enableMultipleThreads on it.

Previously, the code did not raise the exception it should ... which 
would sometimes cause the calling thread to hang.

Perhaps some connections should have -enableMultipleThreads called 
automatically (when an initialiser returns an existing connection 
rather than creating a new one) ... I don't know what the Apple 
behavior is in this case.