import lombok.Builder;

@Builder
public class DefaultedName {
  @Builder.Default @lombok.NonNull String name = "Martin";

  static void test1() {
    builder().build();
  }

  static void test2(Object foo) {
    DefaultedNameBuilder b = builder();
    if (foo != null) {
      b.name(foo.toString());
    }
    b.build();
  }
}