I am trying to get NoUniqueBeanDefinitionException but i am not getting it any clue why i am not getting

I am trying to get NoUniqueBeanDefinitionException but i am not getting it any clue why i am not getting

package com.example.demo;

public interface IDateGen {

}

package com.example.demo;

import org.springframework.stereotype.Service;

@Service
public class DateGen implements IDateGen {

}


package com.example.demo;

import org.springframework.stereotype.Service;

@Service
public class DateGen2 implements IDateGen  {

}
package com.example.demo;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class DateGenUtil {

    @Autowired
    private IDateGen dateGen;

    public IDateGen getDateGen() {
        return dateGen;
    }

    public void setDateGen(IDateGen dateGen) {
        this.dateGen = dateGen;
    }
    
}

package com.example.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;

@SpringBootApplication
public class Demo3Application {

    public static void main(String[] args) {
        ApplicationContext appContext =   SpringApplication.run(Demo3Application.class, args);
        DateGenUtil util =  appContext.getBean(DateGenUtil.class);
        
        System.out.println(util.getDateGen());
    }

}

When i run the main method i getting

com.example.demo.DateGen@6075b2d3

Can anyone tell why i am not getting NoUniqueBeanDefinitionException ? Thanks in advance

Copyright License：
Author:「Kasi Pasa」,Reproduced under the CC 4.0 BY-SA copyright license with link to original source & disclaimer.
Link to：https://stackoverflow.com/questions/67729450/i-am-trying-to-get-nouniquebeandefinitionexception-but-i-am-not-getting-it-any-c