[BAEL-14274] - Fixed article code for https://www.baeldung.com/building-a-restful-web-service-with-spring-and-java-based-configuration

spring-boot-rest/src/main/java/com/baeldung/web/exception/ResourceNotFoundException.java

@@ -0,0 +1,8 @@
+package com.baeldung.web.exception;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@ResponseStatus(value = HttpStatus.NOT_FOUND)
+public class ResourceNotFoundException extends RuntimeException {
+}