Re: [cdt-dev] IProgressMonitor - canceling operations

[Sean Evoy <sevoy@xxxxxxxxxx>]

Chris,
Thanks for bringing that recommendation
to my attention. I know I used the runtime exception in the makefile generator,
even though I check frequently for cancel. More generally, we are going
to be moving a lot of these longer running tasks to other threads, but
this is probably a good reminder for people implementing the code for those
tasks.

[snip]

> My main beef with the OperationCanceledException is that it is a 
> RuntimeException and so does not have to be declared with a throws
> clause and can thus slip through without being caught   As a
policy, 
> RuntimeExceptions should be used sparingly, to indicate programming
> errors (ArrayOutofBounds, etc.) and not to indicate a normal and 
> perfectly valid state of affairs (user clicked the cancel button).
> 
> Thoughts?
> 

Sean Evoy
Rational Software - IBM Software Group
Ottawa, Ontario, Canada