Nowy pakiet doamin i modyfikacja main

src/main/java/com/example/demo/DemoApplication.java

@@ -8,5 +8,6 @@ public class DemoApplication {
 
 	public static void main(String[] args) {
 		System.out.println("Start application");
+		System.out.println("Komunikat Dev2");
 		SpringApplication.run(DemoApplication.class, args);
 	}

src/main/java/com/example/demo/domain/UserEntity.java

@@ -0,0 +1,4 @@
+package com.example.demo.domain;
+
+public class UserEntity {
+}