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A comment on The Brittleness Of Type Hierarchies. Parent comment

Re:The Brittleness Of Type Hierarchies by andrewflnr on Tuesday May 08, 2012 @05:57PM (#3945976)
Um, aren't shared implementations exactly what you're not supposed to use inheritance for? According to the Liskov Substitution Principle (http://www.objectmentor.com/resources/articles/lsp.pdf), if it's not transparently substitutable, it shouldn't be a subclass.
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Re:The Brittleness Of Type Hierarchies by carsongross on Tuesday May 08, 2012 @11:12PM (#3946943)
Probably. But I don't care what the OO academics say: look how they designed JUnit.

I find class-based inheritance most useful for reusing base implementations, and interfaces (explicit or implicit) for conceptual encapsulation. I wish Liskov the best of luck in her software writing.

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