Additional Notes
Why should mutable objects be avoided in immutable classes?
Track: Java
Topic: OOP
Focus: Immutability Basics
Java: Immutability Basics
Answer
Mutable objects can disrupt the immutability guarantee.
Returning mutable objects from an immutable class can lead to external modifications, breaking the class's immutability. For example, if a list of order items is returned and modified, it alters the supposed 'immutable' state, potentially causing bugs.
Returning mutable objects from an immutable class can lead to external modifications, breaking the class's immutability. For example, if a list of order items is returned and modified, it alters the supposed 'immutable' state, potentially causing bugs.
Topics: Immutability Basics Java OOP