Annotation Interface Serial
Indicates that an annotated field or method is part of the serialization mechanism defined by the
 
 Java Object Serialization Specification. This
 annotation type is intended to allow compile-time checking of
 serialization-related declarations, analogous to the checking
 enabled by the 
Override annotation type to
 validate method overriding. Serializable classes are encouraged to
 use @Serial annotations to help a compiler catch
 mis-declared serialization-related fields and methods,
 mis-declarations that may otherwise be difficult to detect.
 Specifically, annotations of this type should be
 applied to serialization-related methods and fields in classes
 declared to be Serializable. The five serialization-related
 methods are:
 
- private void writeObject(java.io.ObjectOutputStream stream) throws IOException
- private void readObject(java.io.ObjectInputStream stream) throws IOException, ClassNotFoundException
- private void readObjectNoData() throws ObjectStreamException
- ANY-ACCESS-MODIFIER Object writeReplace() throws ObjectStreamException
- ANY-ACCESS-MODIFIER Object readResolve() throws ObjectStreamException
- private static final ObjectStreamField[] serialPersistentFields
- private static final long serialVersionUID
@Serial annotation is one of the defined serialization-related
 methods or fields declared in a meaningful context and issue a warning
 if that is not the case.
 It is a semantic error to apply this annotation to other fields or methods, including:
- fields or methods in a class that is not Serializable
- fields or methods of the proper structural declaration, but in
 a type where they are ineffectual. For example, enumtypes are defined to have aserialVersionUIDof0Lso aserialVersionUIDfield declared in anenumtype is ignored. The five serialization-related methods identified above are likewise ignored for anenumtype.
- in a class that is Externalizable:-  method declarations of writeObject,readObject, andreadObjectNoData
- a field declaration for serialPersistentFields
 Externalizableinterface extendsSerializable, the three methods and one field above are not used for externalizable classes.
-  method declarations of 
Serializable class.- Since:
- 14
- External Specifications
- See Also: