Merge branch 'master' into BAEL-16633

spring-boot-data/src/main/java/com/baeldung/jsonexception/MainController.java

@@ -0,0 +1,14 @@
+package com.baeldung.jsonexception;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+
+@Controller
+public class MainController {
+
+    @GetMapping("/")
+    public void index() throws CustomException {
+        throw new CustomException();
+    }
+
+}