Instances of a ``++Serializable++`` class can be saved out to file and rehydrated at leisure. But that only works when all the values in the class instance are themselves ``++Serializable++`` (or ``++transient++``). Storing a non-serializable value in a ``++Serializable++`` class will prevent the serialization of that class.
== Noncompliant Code Example
----
interface Fruit extends Serializable {...}
class Gooseberry implements Fruit { // Nonserializable because of Thread field
Thread thread;
}
class Bowl implements Serializable {
private static final long serialVersionUID = 1;
private Fruit fruit = new Gooseberry(); //Non-Compliant
}
----
== Compliant Solution
----
interface Fruit implements Serializable {...}
class Gooseberry implements Fruit {...} //Serializable
class Bowl implements Serializable {
private static final long serialVersionUID = 1;
private Fruit fruit = new Gooseberry(); //Compliant, Gooseberry is serializable