Additional Notes
What happens if a constructor directly sets a mutable object field?
Track: Java
Topic: OOP
Focus: Constructors
Java: Constructors
Answer
It may lead to data leaks or security issues.
If a constructor directly assigns a mutable object field, it exposes internal state to external modifications. For instance, in an `Order` class, directly assigning a `List` can lead to the list being modified outside of the class, potentially corrupting order data. Use defensive copying to manage this risk.
If a constructor directly assigns a mutable object field, it exposes internal state to external modifications. For instance, in an `Order` class, directly assigning a `List` can lead to the list being modified outside of the class, potentially corrupting order data. Use defensive copying to manage this risk.
Topics: Constructors Java OOP