diff --git a/spring-all/src/main/java/org/baeldung/controller/config/StudentControllerConfig.java b/spring-all/src/main/java/org/baeldung/controller/config/StudentControllerConfig.java
index 746f084fd5..443635fb70 100644
--- a/spring-all/src/main/java/org/baeldung/controller/config/StudentControllerConfig.java
+++ b/spring-all/src/main/java/org/baeldung/controller/config/StudentControllerConfig.java
@@ -1,33 +1,31 @@
 package org.baeldung.controller.config;
 
+import javax.servlet.ServletContext;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRegistration;
+
 import org.springframework.web.WebApplicationInitializer;
 import org.springframework.web.context.ContextLoaderListener;
 import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
 import org.springframework.web.context.support.GenericWebApplicationContext;
 import org.springframework.web.servlet.DispatcherServlet;
 
-import javax.servlet.ServletContext;
-import javax.servlet.ServletException;
-import javax.servlet.ServletRegistration;
-
 public class StudentControllerConfig implements WebApplicationInitializer {
+   	
+   @Override
+   public void onStartup(ServletContext sc) throws ServletException {
+	AnnotationConfigWebApplicationContext root = new AnnotationConfigWebApplicationContext();
+	root.register(WebConfig.class);
 
+	root.setServletContext(sc);
 
-    @Override
-    public void onStartup(ServletContext sc) throws ServletException {
-        AnnotationConfigWebApplicationContext root = new AnnotationConfigWebApplicationContext();
-        root.register(WebConfig.class);
+	// Manages the lifecycle of the root application context
+	sc.addListener(new ContextLoaderListener(root));
 
-        root.refresh();
-        root.setServletContext(sc);
+	DispatcherServlet dv = new DispatcherServlet(new GenericWebApplicationContext());
 
-        sc.addListener(new ContextLoaderListener(root));
-
-        DispatcherServlet dv = new DispatcherServlet(new GenericWebApplicationContext());
-
-        ServletRegistration.Dynamic appServlet = sc.addServlet("test-mvc", dv);
-        appServlet.setLoadOnStartup(1);
-        appServlet.addMapping("/test/*");
-    }
+	ServletRegistration.Dynamic appServlet = sc.addServlet("test-mvc", dv);
+	appServlet.setLoadOnStartup(1);
+	appServlet.addMapping("/test/*");
+	}
 }
-