#107 Front Controller example JavaDoc

front-controller/src/main/java/com/iluwatar/front/controller/ApplicationException.java

@@ -1,8 +1,15 @@
 package com.iluwatar.front.controller;
 
+/**
+ * 
+ * Custom exception type
+ *
+ */
 public class ApplicationException extends RuntimeException {
 
-    public ApplicationException(Throwable cause) {
+	private static final long serialVersionUID = 1L;
+
+	public ApplicationException(Throwable cause) {
         super(cause);
     }
 }