BAEL-3689: Add missing code examples (#10282)

spring-boot-modules/spring-boot-data/src/main/java/com/baeldung/startup/AppStartupRunner.java

@@ -8,6 +8,7 @@ import org.springframework.stereotype.Component;
 
 @Component
 public class AppStartupRunner implements ApplicationRunner {
+
     private static final Logger LOG = LoggerFactory.getLogger(AppStartupRunner.class);
     public static int counter;
 

spring-boot-modules/spring-boot-data/src/main/java/com/baeldung/startup/CommandLineAppStartupRunner.java

@@ -7,6 +7,7 @@ import org.springframework.stereotype.Component;
 
 @Component
 public class CommandLineAppStartupRunner implements CommandLineRunner {
+
     private static final Logger LOG = LoggerFactory.getLogger(CommandLineAppStartupRunner.class);
     public static int counter;
 
@@ -15,4 +16,4 @@ public class CommandLineAppStartupRunner implements CommandLineRunner {
         LOG.info("Increment counter");
         counter++;
     }
-}
+}

spring-boot-modules/spring-boot-data/src/main/java/com/baeldung/startup/SpringStartupConfig.java

@@ -1,9 +1,15 @@
 package com.baeldung.startup;
 
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
 
 @Configuration
 @ComponentScan("com.baeldung.startup")
 public class SpringStartupConfig {
+
+    @Bean(initMethod="init")
+    public InitMethodExampleBean initMethodExampleBean() {
+        return new InitMethodExampleBean();
+    }
 }

spring-boot-modules/spring-boot-data/src/test/java/com/baeldung/startup/SpringStartupIntegrationTest.java

@@ -37,6 +37,11 @@ public class SpringStartupIntegrationTest {
         ctx.getBean(InitializingBeanExampleBean.class);
     }
 
+    @Test
+    public void whenInitMethod_shouldLogEnv() throws Exception {
+        ctx.getBean(InitMethodExampleBean.class);
+    }
+
     @Test
     public void whenApplicationListener_shouldRunOnce() throws Exception {
         Assertions.assertThat(StartupApplicationListenerExample.counter).isEqualTo(1);

spring-boot-modules/spring-boot-data/src/test/java/com/baeldung/startup/SpringStartupXMLConfigIntegrationTest.java

@@ -15,7 +15,7 @@ public class SpringStartupXMLConfigIntegrationTest {
     private ApplicationContext ctx;
 
     @Test
-    public void whenPostConstruct_shouldLogEnv() throws Exception {
+    public void whenInitMethod_shouldLogEnv() throws Exception {
         ctx.getBean(InitMethodExampleBean.class);
     }