package com.baeldung.properties; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.builder.SpringApplicationBuilder; import org.springframework.context.annotation.ComponentScan; @SpringBootApplication @ComponentScan(basePackageClasses = { ConfigProperties.class, JsonProperties.class, CustomJsonProperties.class }) public class ConfigPropertiesDemoApplication { public static void main(String[] args) { new SpringApplicationBuilder(ConfigPropertiesDemoApplication.class).initializers(new JsonPropertyContextInitializer()) .run(); } }