WitherWithData.java

package de.plushnikov.wither;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.experimental.Wither;

@AllArgsConstructor
@Data
public class WitherWithData {
  private String ssn;
  private String name;

  @Wither
  private String phone;

  public static void main(String[] args) {
    WitherWithData withData = new WitherWithData("a", "b", "c");
    withData.getPhone();
    System.out.println(withData.withPhone("1234"));
  }
}