Netbeans is issuing the warning "An entity or IdClass class should implement the java.io.Serializable interface." for one of my JPA entity classes. The thing is, this entity class implements a custom interface that extends `java.io.Serializable`, so it does in effect implement `Serializable`:

//  BasicEntity.java  //////////////////////////////////////////////////
public interface BasicEntity extends java.io.Serializable {
}


//  TestEntity.java  //////////////////////////////////////////////////
import javax.persistence.Entity;
import javax.persistence.Id;

@Entity
public class TestEntity implements BasicEntity {
    @Id
    private int id;
}