Added UserController.java, modified DemoApplication.java, deleted UserCopy.java:

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

@@ -9,6 +9,7 @@ public class DemoApplication {
 	public static void main(String[] args) {
         System.out.println("Start Application");
 		SpringApplication.run(DemoApplication.class, args);
+        System.out.println("Application Complete");
 	}
 
 }

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

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

src/main/java/com/example/demo/controller/UserController.java

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