仅当属性为空时，如何从lombok构建器中排除该属性

import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;

@Data
@Builder
@AllArgsConstructor
public class Example {
    private String property1;
    private String property2;
    private String excludedProperty;

    public static void main(String[] args) {
        Example example = Example.builder()
                .property1("value1")
                .property2("value2")
                // 在构建器中排除excludedProperty
                .build();
    }
}