BAEL-20881: Move spring-boot-performance into spring-boot-modules

spring-boot-modules/spring-boot-performance/src/main/java/com/baeldung/lazyinitialization/Application.java

@@ -0,0 +1,32 @@
+package com.baeldung.lazyinitialization;
+
+import com.baeldung.lazyinitialization.services.Writer;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.Bean;
+
+@SpringBootApplication
+public class Application {
+
+    @Bean("writer1")
+    public Writer getWriter1() {
+        return new Writer("Writer 1");
+    }
+
+    @Bean("writer2")
+    public Writer getWriter2() {
+        return new Writer("Writer 2");
+    }
+
+    public static void main(String[] args) {
+        ApplicationContext ctx = SpringApplication.run(Application.class, args);
+        System.out.println("Application context initialized!!!");
+
+        Writer writer1 = ctx.getBean("writer1", Writer.class);
+        writer1.write("First message");
+
+        Writer writer2 = ctx.getBean("writer2", Writer.class);
+        writer2.write("Second message");
+    }
+}

spring-boot-modules/spring-boot-performance/src/main/java/com/baeldung/lazyinitialization/services/Writer.java

@@ -0,0 +1,16 @@
+package com.baeldung.lazyinitialization.services;
+
+public class Writer {
+
+    private final String writerId;
+
+    public Writer(String writerId) {
+        this.writerId = writerId;
+        System.out.println(writerId + " initialized!!!");
+    }
+
+    public void write(String message) {
+        System.out.println(writerId + ": " + message);
+    }
+
+}

spring-boot-modules/spring-boot-performance/src/main/resources/application.yml

@@ -0,0 +1,3 @@
+spring:
+  main:
+    lazy-initialization: true