How to make a class JSON Serializable.
What is[Serializable] and when should I use it?
Such schedules are called Serializable schedules.
All subtypes of a Serializable class are themselves Serializable.
In addition, all classes derived from Serializable classes are themselves Serializable.
This is done by adding the[Serializable] decoration at the top of the class.
An object is Serializable only if its class or its superclass implements the Serializable interface.
Serializability of a class is enabled by the class implementing the java. io. Serializable interface.
The web module calls the EJB module remotely and
passes a POJO that implements Serializable as an argument.
If your class is not available at the top level of a module it is not Serializable.
If you get this warning on a class you don't ever think about serializing, and that you didn't declare yourself implements Serializable,
it is often because you inherited from a superclass, which implements Serializable.