diff -r 20a9b2bc9063 -r 89e3e6e28b69 src/java/de/uapcore/lightpit/Constants.java
--- a/src/java/de/uapcore/lightpit/Constants.java	Fri Dec 15 17:39:54 2017 +0100
+++ b/src/java/de/uapcore/lightpit/Constants.java	Sat Dec 16 20:19:28 2017 +0100
@@ -28,11 +28,19 @@
  */
 package de.uapcore.lightpit;
 
+import static de.uapcore.lightpit.Functions.fullyQualifiedName;
+
 /**
  * Contains all constants used by the this application.
  */
-public abstract class Constants {
-    public static final String HOME_NODE = "/home/";
+public final class Constants {
+    public static final String JSP_PATH_PREFIX = "/WEB-INF/view/";
+    
+    public static final String REQ_ATTR_MENU = fullyQualifiedName(AbstractLightPITServlet.class, "mainMenu");
+    public static final String REQ_ATTR_PATH = fullyQualifiedName(AbstractLightPITServlet.class, "path");
     
-    public static final String JSP_PATH_PREFIX = "/WEB-INF/view/";
+    /**
+     * This class is not instantiatable.
+     */
+    private Constants() {}
 }