diff --git a/java-spring-boot-demo/src/main/java/com/example/demo/DemoController.java b/java-spring-boot-demo/src/main/java/com/example/demo/DemoController.java
new file mode 100644
index 0000000..61a5075
--- /dev/null
+++ b/java-spring-boot-demo/src/main/java/com/example/demo/DemoController.java
@@ -0,0 +1,14 @@
+package com.example.demo;
+
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class DemoController {
+
+    @RequestMapping("/")
+    public Object root() {
+        return null;
+    }
+
+}