Fixed issues due to parent-boot-2 migration (migration to Spring-boot 2):

* Configured Hiberante 5 correctly
* Configured Git plugin correctly
* Changed hibernate methods to comply with new method naming conventions
* Removed and replaced deprecated properties
* Updated Actuator test to use new response structure
* Using random port in Mongo integration test, to avoid clashing with a potential instance using the mongo default port

spring-boot/src/main/java/com/baeldung/dynamicvalidation/DynamicValidationApp.java

@@ -9,7 +9,8 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 public class DynamicValidationApp {
     @RolesAllowed("*")
     public static void main(String[] args) {
-        System.setProperty("security.basic.enabled", "false");
         SpringApplication.run(DynamicValidationApp.class, args);
     }
+    
+    
 }