done

initial/pom.xml

             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <properties>

initial/src/main/java/hello/Application.java

 
 import java.util.Arrays;
 
+import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cglib.core.SpringNamingPolicy;
 import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.Bean;
 
 @SpringBootApplication
 public class Application {
     
     public static void main(String[] args) {
-        ApplicationContext ctx = SpringApplication.run(Application.class, args);
-        
-        System.out.println("Let's inspect the beans provided by Spring Boot:");
-        
-        String[] beanNames = ctx.getBeanDefinitionNames();
-        Arrays.sort(beanNames);
-        for (String beanName : beanNames) {
-            System.out.println(beanName);
-        }
+        SpringApplication.run(Application.class, args);
+    }
+
+    @Bean
+    public CommandLineRunner commandLineRunner(ApplicationContext ctx) {
+        return args -> {
+
+            System.out.println("Let's inspect the beans provided by Spring Boot:");
+            String[] beanNames = ctx.getBeanDefinitionNames();
+            Arrays.sort(beanNames);
+            for (String beanName : beanNames) {
+                System.out.println(beanName);
+            }
+
+        };
     }
 
 }

initial/src/main/java/hello/HelloControllerTest.java

+package hello;
+
+public class HelloControllerTest {
+
+}