Index: lams_tool_nb/src/java/org/lamsfoundation/lams/tool/noticeboard/web/NbLearnerAction.java
===================================================================
diff -u -r7a4ea3e5ff301874a107ffd2230e9db4aaf31e2d -rb07f9cf2c3a7e59cb64a4b917c89e7252cfdb769
--- lams_tool_nb/src/java/org/lamsfoundation/lams/tool/noticeboard/web/NbLearnerAction.java	(.../NbLearnerAction.java)	(revision 7a4ea3e5ff301874a107ffd2230e9db4aaf31e2d)
+++ lams_tool_nb/src/java/org/lamsfoundation/lams/tool/noticeboard/web/NbLearnerAction.java	(.../NbLearnerAction.java)	(revision b07f9cf2c3a7e59cb64a4b917c89e7252cfdb769)
@@ -33,7 +33,8 @@
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
-import org.apache.struts.actions.LookupDispatchAction;
+//import org.apache.struts.actions.LookupDispatchAction;
+import org.lamsfoundation.lams.web.action.LamsLookupDispatchAction;
 import org.apache.log4j.Logger;
 
 
@@ -49,6 +50,7 @@
 import org.lamsfoundation.lams.learning.service.ILearnerService;
 import org.lamsfoundation.lams.learning.service.LearnerServiceProxy;
 import org.lamsfoundation.lams.usermanagement.User;
+import org.lamsfoundation.lams.tool.noticeboard.util.NbWebUtil;
 
 
 /**
@@ -58,10 +60,14 @@
  * 
  * @struts:action path="/learner" name="NbLearnerForm" scope="session" type="org.lamsfoundation.lams.tool.noticeboard.web.NbLearnerAction"
  *                input=".learnerContent" validate="false" parameter="method"
+ * @struts.action-exception key="error.exception.NbApplication" scope="request"
+ *                type="org.lamsfoundation.lams.tool.noticeboard.NbApplicationException"
+ *                path=".error"
+ *                handler="org.lamsfoundation.lams.tool.noticeboard.web.CustomStrutsExceptionHandler"
  * @struts:action-forward name="displayLearnerContent" path=".learnerContent"
  * ----------------XDoclet Tags--------------------
  */
-public class NbLearnerAction extends LookupDispatchAction {
+public class NbLearnerAction extends LamsLookupDispatchAction {
 
     static Logger logger = Logger.getLogger(NbLearnerAction.class.getName());
     
@@ -81,11 +87,18 @@
      * @param response
      * @return
      */
-    public ActionForward finish(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
+    public ActionForward finish(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws NbApplicationException {
 		
 	  NbLearnerForm learnerForm = (NbLearnerForm)form;
-	  Long toolSessionID = learnerForm.getToolSessionId();
-	  Long userID = learnerForm.getUserId();
+	  Long toolSessionID = NbWebUtil.convertToLong(learnerForm.getToolSessionId());
+	  Long userID = NbWebUtil.convertToLong(learnerForm.getUserId());
+	  
+	  if (toolSessionID == null || userID == null)
+	  {
+	      String error = "Unable to continue. The parameters tool session id or user id is missing";
+	      logger.error(error);
+	      throw new NbApplicationException(error);
+	  }
 	  INoticeboardService nbService = NoticeboardServiceProxy.getNbService(getServlet().getServletContext());
 	 /** TODO: learnerServiceProxy causes an exception, fix this up later */
 	  // ILearnerService learnerService = LearnerServiceProxy.getLearnerService(getServlet().getServletContext());
Index: lams_tool_nb/src/java/org/lamsfoundation/lams/tool/noticeboard/web/NbMonitoringAction.java
===================================================================
diff -u -rd2ddd825c4d9997a885984ce49fdb5a3b41abb86 -rb07f9cf2c3a7e59cb64a4b917c89e7252cfdb769
--- lams_tool_nb/src/java/org/lamsfoundation/lams/tool/noticeboard/web/NbMonitoringAction.java	(.../NbMonitoringAction.java)	(revision d2ddd825c4d9997a885984ce49fdb5a3b41abb86)
+++ lams_tool_nb/src/java/org/lamsfoundation/lams/tool/noticeboard/web/NbMonitoringAction.java	(.../NbMonitoringAction.java)	(revision b07f9cf2c3a7e59cb64a4b917c89e7252cfdb769)
@@ -37,7 +37,8 @@
 import org.apache.struts.action.ActionForm;
 import org.apache.struts.action.ActionForward;
 import org.apache.struts.action.ActionMapping;
-import org.apache.struts.actions.LookupDispatchAction;
+//import org.apache.struts.actions.LookupDispatchAction;
+import org.lamsfoundation.lams.web.action.LamsLookupDispatchAction;
 import org.lamsfoundation.lams.tool.noticeboard.NoticeboardConstants;
 import org.lamsfoundation.lams.tool.noticeboard.service.INoticeboardService;
 import org.lamsfoundation.lams.tool.noticeboard.service.NoticeboardServiceProxy;
@@ -57,10 +58,14 @@
  * 
  * @struts:action path="/monitoring" name="NbMonitoringForm" scope="session" type="org.lamsfoundation.lams.tool.noticeboard.web.NbMonitoringAction"
  *                input=".monitoringContent" validate="false" parameter="method"
+ * @struts.action-exception key="error.exception.NbApplication" scope="request"
+ *                          type="org.lamsfoundation.lams.tool.noticeboard.NbApplicationException"
+ *                          path=".error"
+ *                          handler="org.lamsfoundation.lams.tool.noticeboard.web.CustomStrutsExceptionHandler"
  * @struts:action-forward name="monitorPage" path=".monitoringContent"
  * ----------------XDoclet Tags--------------------
  */
-public class NbMonitoringAction extends LookupDispatchAction {
+public class NbMonitoringAction extends LamsLookupDispatchAction {
     
     static Logger logger = Logger.getLogger(NbMonitoringAction.class.getName());