Immutable Objects in Java using Builder Pattern with Functional Interface

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Why Immutable Objects Are Important

Immutable objects in Java are objects whose states cannot be changed once created. This attribute of immutability brings about several benefits:

Thread-Safety: Immutable objects are inherently thread-safe, as their state cannot change after creation. This makes them a good fit for multi-threaded environments where synchronization and thread safety are essential.

Simplicity and Clarity: Immutable objects are simpler to design, implement, and use. Since they cannot change state, you do not have to worry about their state changes over time. This makes the code clear and easier to reason about.

Hashing: Immutable objects are excellent for use as keys in HashMap or elements in HashSet as their hashcode remains constant.

Security Risks in Deserialization and RCE: Deserialization and Remote Code Execution (RCE) vulnerabilities in Java are often linked to mutable objects. Deserialization transforms a byte stream back into an object. If this process occurs without proper validation…