[FIXED] inheritance relationship No identifier specified for entity

Issue

class A implements Serializable{
    private static final long serialVersionUID = 1L;
    @Id
    Integer id;
    ...
    // constructor getter and setter 
}

@Entity
class B extends A{
    private static final long serialVersionUID = 1L;
    @Column
    String name;
    @Column
    String age;
    ...
    //constructors, getters and setters
}

As you see above, class A extends from class B, B should have the identifier id inheritance from A. but i got the No identifier specified for entity: com.d.e.B

what did i missed? thanks in advance.

Solution

You missed the @MappedSuperclass annotation on A, to tell Hibernate/JPA that properties and JPA annotations found in A must be considered.

Answered By - JB Nizet
Answer Checked By - Mildred Charles (JavaFixing Admin)