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Business exceptions

Use a common base class

  • All business exceptions should inherit a common abstract base class so they can be distinguished from technical exceptions.

    • Should be inheriting RuntimeException

    • Should store the cause Exception

    • Should contain a reason enum. The enum is project individual and contains values like Conflict, NotFound and IncorrectInput. This enum can later be used to decide how to inform the user about the problem e.g. via HTTP status codes when building REST apis.