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1.69 Exception

Defined in namespace Smalltalk
Superclass: Signal
Category: Language-Exceptions
An Exception defines the characteristics of an exceptional event in a different way than CoreExceptions. Instead of creating an hierarchy of objects and setting attributes of the objects, you create an hierarchy of classes and override methods in those classes; instances of those classes are passed to the handlers instead of instances of the common class Signal.

Internally, Exception and every subclass of it hold onto a CoreException, so the two mechanisms are actually interchangeable.