Custom Serializer for java.util.Date not working

[ninadtare10]

I have written custom serializer for java.util.Date, code as follows

public class DateMapper extends JsonSerializer<Date>{

	@Override
	public void serialize(Date dateObje, JsonGenerator jgen, SerializerProvider serializers) throws IOException, JsonProcessingException {
		// TODO Auto-generated method stub
		String formattedDate = new SimpleDateFormat("yyyy-MM-dd").format(dateObje);
        jgen.writeString(formattedDate);
	}
}

And I am trying to register it as follows

@Configuration
public class Mapper extends WebMvcConfigurerAdapter {
	@Bean
	  public JsonViewSupportFactoryBean views() {
		JsonViewSupportFactoryBean bean = new JsonViewSupportFactoryBean();
		bean.registerCustomSerializer(Date.class, new DateMapper());
	    return bean;
	  }
}

But its not working, not sure why.
I have tried the same way for string and its working fine.