Bank, Person abstract class

/*
 * Person.java - abstract class
 * bank clients should be derived from this class
 */
package BankClients;

import java.time.LocalDate;

import BankExceptions.BankIdException;
import BankExceptions.BankNameException;
import BankPkg.BankUtils;

public abstract class Person {
    private String name;
    private int id;
    private LocalDate birthDate;

    public Person(String name, int id, LocalDate birthDate) throws Exception {
        super();

        if (!BankUtils.isValidName(name))
            throw new BankNameException(name);
        if (!BankUtils.isValidId(id)) {
            throw new BankIdException(id);
        }

        this.name = name;
        this.id = id;
        this.birthDate = birthDate.plusDays(0); // to clone date object
    }

    public Person(Person other) {
        this.id = other.id;
        this.name = other.name;
        this.birthDate = other.birthDate.plusDays(0);
    }

    public String getName() {
        return this.name;
    }

    public int getId() {
        return this.id;
    }

    public LocalDate getBirthDate() {
        return this.birthDate.plusDays(0); // return a cloned object
    }

    public int getAge() {
        return (int) BankUtils.getAge(this.birthDate);
    }

    public int getAge(LocalDate atDate) {
        return (int) BankUtils.getAge(this.birthDate, atDate);
    }

    public void setName(String name) throws Exception {
        if (!BankUtils.isValidName(name)) {
            throw new BankNameException(this.name, name);

        }

        this.name = name;
    }

    protected String feildsAsString() {
        return "name=" + name + ", id=" + id + ", birthDate=" + birthDate;
    }

    @Override
    public String toString() {
        return this.getClass().getSimpleName() + " [" + feildsAsString() + "]";
    }

    @Override
    public boolean equals(Object obj) {
        if (obj instanceof Person) {
            Person tmpPerson = (Person) obj;
            return this.id == tmpPerson.id && this.name.equals(tmpPerson.name)
                    && this.birthDate.equals(tmpPerson.birthDate);
        }
        return false;
    }
}