如何在Java中模拟使用Map Struct的类？

<dependency>
    <groupId>org.mapstruct</groupId>
    <artifactId>mapstruct</artifactId>
    <version>1.4.2.Final</version>
</dependency>

public class SourceObject {
    private String name;
    private int age;
    // 其他属性和方法
}

public class TargetObject {
    private String name;
    private int age;
    // 其他属性和方法
}

@Mapper
public interface ObjectMapper {
    ObjectMapper INSTANCE = Mappers.getMapper(ObjectMapper.class);

    TargetObject mapToTargetObject(SourceObject source);

    SourceObject mapToSourceObject(TargetObject target);
}

SourceObject source = new SourceObject();
source.setName("John");
source.setAge(25);

TargetObject target = ObjectMapper.INSTANCE.mapToTargetObject(source);
System.out.println(target.getName()); // 输出：John
System.out.println(target.getAge()); // 输出：25