Why is it not recommended to declare the Entity class as final?

The Entity class is not recommended to be declared as final because:

• Entity classes are often used in ORM (e.g., Hibernate), where proxy classes are created for lazy loading or other mechanisms. If the class is final, inheritance is impossible, and ORM cannot work correctly.
• Declaring a class as final limits the ability to extend and modify behavior through inheritance, which reduces architectural flexibility.

Therefore, to ensure compatibility with ORM and the ability to extend, Entity classes are usually not made final.