Index: lams_tool_mindmap/src/java/org/lamsfoundation/lams/tool/mindmap/util/xmlmodel/NodeModel.java
===================================================================
diff -u -r7475d08afc280b5e2e5ddf04e8bf35e3166aaf80 -rccc4d2d86313461c026ae469c92b4f43befb37ee
--- lams_tool_mindmap/src/java/org/lamsfoundation/lams/tool/mindmap/util/xmlmodel/NodeModel.java	(.../NodeModel.java)	(revision 7475d08afc280b5e2e5ddf04e8bf35e3166aaf80)
+++ lams_tool_mindmap/src/java/org/lamsfoundation/lams/tool/mindmap/util/xmlmodel/NodeModel.java	(.../NodeModel.java)	(revision ccc4d2d86313461c026ae469c92b4f43befb37ee)
@@ -21,8 +21,6 @@
  * ****************************************************************
  */
 
-
-
 package org.lamsfoundation.lams.tool.mindmap.util.xmlmodel;
 
 import java.util.ArrayList;
@@ -42,9 +40,13 @@
 	this.setConcept(nodeConceptModel);
     }
 
+    public NodeModel() {
+
+    }
+
     /**
      * Sets Concept for Mindmap Node
-     * 
+     *
      * @param concept
      */
     public void setConcept(NodeConceptModel concept) {
@@ -53,7 +55,7 @@
 
     /**
      * Returns Mindmap Concept
-     * 
+     *
      * @return concept
      */
     public NodeConceptModel getConcept() {
@@ -62,7 +64,7 @@
 
     /**
      * Returns all children of the Node
-     * 
+     *
      * @return nodes
      */
     public List<NodeModel> getBranch() {
@@ -71,7 +73,7 @@
 
     /**
      * Adds Node as a Child
-     * 
+     *
      * @param nodeModel
      */
     public void addNode(NodeModel nodeModel) {