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From Darren Shepherd <>
Subject [DISCUSS] Checked Exceptions
Date Mon, 14 Oct 2013 17:29:34 GMT
I'm going through and updating all the code to use what I had proposed
with Transaction management.  This has uncovered more fun issues
around exception handling.  Well, not an issue per say, but just
pointed out the ridiculous amount of checked exceptions in method
signatures.  I generally follow the "avoid checked exceptions at all
costs" camp.  The majority of the time the caller is forced to catch
some checked exception, but then doesn't know what to do with it, so
the exception handling is not correct.  Pretty much the only time I
typically use checked exceptions is with IOException and its
subclasses.  Basically when you are calling some method, if that
method does I/O, you should know as the caller because bad stuff
happens with I/O.

I'd like to transition ACS to more unchecked exceptions eventually.
At the moment, I've found two exceptions that I'd really like to
change to be unchecked.  Those are InsufficientCapacityException and
ConcurrentOperationException.  Would anybody have an objection to me
changing those exceptions to be unchecked?  I might find more as
things go along, but those two are causing a bunch of problems for me.
 The change will just be moving from "extends CloudException" to
"extend CloudRuntimeException."


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