如何通过Java中的闭包来替换/扩充接口？

// 定义接口
interface MyInterface {
    void doSomething();
}

public class Main {
    public static void main(String[] args) {
        // 原有的接口实现
        MyInterface originalImpl = new MyInterface() {
            @Override
            public void doSomething() {
                System.out.println("Original implementation");
            }
        };

        // 使用闭包替换接口实现
        final String additionalMessage = " with closure";
        MyInterface closureImpl = new MyInterface() {
            @Override
            public void doSomething() {
                System.out.println("Closure implementation" + additionalMessage);
            }
        };

        // 调用原有接口实现的方法
        originalImpl.doSomething();

        // 调用闭包替换的接口实现的方法
        closureImpl.doSomething();
    }
}