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Good exception design can be useful in communicating the semantics of an operation and improve method factoring. This requires looking beyond the mechanical compilation and to what each method means to its consumer.

Introduction

OSIDs strictly define the permissible checked an unchecked exceptions which may pass. They are straightforward in the most basic of method implementations. However, some semantic analysis is necessary when creating a chain of methods to help convey what may have gone wrong to your consumer or ultimately your end user.

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