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Cloning and Inheritance
- Object.clone is paranoid
-
- clone only clones Cloneable objects
- clone throws checked exception
- You don't have that luxury
- Manager.clone must be defined if
Manager adds mutable fields
- Rule of thumb: if you extend a class that defines
clone, redefine clone
- Lesson to learn: Tagging interfaces are inherited. Use them
only to tag properties that inherit
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