Get Currently Online Users

Hi,
ERROR
======
Portal Runtime Error
An exception occurred while processing a request for :
iView : N/A
Component Name : N/A
com/sap/ip/collaboration/core/api/ume/portal/IRTCAwarenessService.
Exception id: 03:13_21/03/06_0110_1728550
See the details for the exception ID in the log file
Code
====
import com.sapportals.htmlb.page.DynPage;
import com.sapportals.htmlb.page.PageException;
import com.sapportals.portal.htmlb.page.PageProcessorComponent;
import com.sap.ip.collaboration.rtc.api.ICollaborationAwareness;
import com.sap.ip.collaboration.rtc.api.ICollaborationBase;
import com.sap.security.api.IUser;
import com.sap.security.api.UMFactory;
import com.sapportals.htmlb.*;
import com.sapportals.htmlb.enum.*;
import com.sapportals.portal.prt.component.IPortalComponentResponse;
import com.sapportals.portal.prt.runtime.PortalRuntime;
public class COU extends PageProcessorComponent {
public DynPage getPage() {
    return new COUDynPage();
public static class COUDynPage extends DynPage {
Initialization code executed once per user.
    public void doInitialization() {
Input handling code. In general called the first time with the second page request from the user.
    public void doProcessAfterInput() throws PageException {
Create output. Called once per request.
    public void doProcessBeforeOutput() throws PageException {
      Form myForm = this.getForm(); // get the form from DynPage
      IPortalComponentResponse response = (IPortalComponentResponse)this.getResponse();
             response.write("Hello");
      // IUser userId = UMFactory.getUserFactory().getUserByLogonID("126149d");
       String userId = "126149d";
       ICollaborationBase srvc = (ICollaborationBase) PortalRuntime.getRuntimeResources().getService("collaboration_base");
       ICollaborationAwareness mm_awareness = srvc.getAwareness();
       boolean isOnline = mm_awareness.isUserOnline(userId);
      // create your GUI here....
Portalapp.xml
=============
<?xml version="1.0" encoding="utf-8"?>
<application>
<application-config>
    <property name="SharingReference" value="com.sap.portal.htmlb"/>
        <property name="SharingReference" value="com.sap.ip.collaboration.rtc.api.ICollaborationAwareness"/>
</application-config>
<components>
    <component name="COU">
      <component-config>
        <property name="ClassName" value="com.cts.anand.COU"/>
      </component-config>
      <component-profile/>
    </component>
    <component name="OnlineUsers">
      <component-config>
        <property name="ClassName" value="com.cts.anand.OnlineUsers"/>
      </component-config>
      <component-profile/>
    </component>
</components>
<services/>
</application>
What is the problem
Thanks
Kirupanand
Message was edited by: Kirupanand Venkatapathi

HI,
Yoav
I have given the sharing reference
<property name="SharingReference" value="com.sap.ip.collaboration.rtc.api.ICollaborationAwareness"/>
Already found the jar and added it to the project.
Karthick
Already tried the answer you have mentioned.
Log file
#1.5#000D565A73B0005D000000C000000F6000040FB58D06B80F#1143172336138#com.sap.portal.portal#sap.com/irj#com.sap.portal.portal#Guest#192####95a166a0bae911dabd03000d565a73b0#SAPEngine_Application_Thread[impl:3]_9##0#0#Error#1#/System/Server#Java###Exception ID:09:22_24/03/06_0035_4049850
[EXCEPTION]
#1#com.sapportals.portal.prt.component.PortalComponentException: Error in init method
Component : CurrentlyOnlineUsers.COU
at com.sapportals.portal.prt.component.PortalComponentContext.init(PortalComponentContext.java:251)
at com.sapportals.portal.prt.core.broker.PortalComponentContextItem.refresh(PortalComponentContextItem.java:267)
at com.sapportals.portal.prt.core.broker.PortalComponentContextItem.getContext(PortalComponentContextItem.java:312)
at com.sapportals.portal.prt.component.PortalComponentRequest.getComponentContext(PortalComponentRequest.java:385)
at com.sapportals.portal.prt.connection.PortalRequest.getRootContext(PortalRequest.java:435)
at com.sapportals.portal.prt.core.PortalRequestManager.runRequestCycle(PortalRequestManager.java:607)
at com.sapportals.portal.prt.connection.ServletConnection.handleRequest(ServletConnection.java:240)
at com.sapportals.portal.prt.dispatcher.Dispatcher$doService.run(Dispatcher.java:522)
at java.security.AccessController.doPrivileged(Native Method)
at com.sapportals.portal.prt.dispatcher.Dispatcher.service(Dispatcher.java:405)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.servlet.InvokerServlet.service(InvokerServlet.java:156)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)
at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)
at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)
at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(Native Method)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:95)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:160)
Caused by: com.sapportals.portal.prt.core.broker.PortalComponentInstantiationException: Could not instantiate implementation class com.cts.anand.COU of Portal Component CurrentlyOnlineUsers.COU because: Could not instantiate implementation class
at com.sapportals.portal.prt.core.broker.PortalComponentItemFacade.getInstanceInternal(PortalComponentItemFacade.java:269)
at com.sapportals.portal.prt.core.broker.PortalComponentItemFacade.getComponentInstance(PortalComponentItemFacade.java:160)
at com.sapportals.portal.prt.core.broker.PortalComponentItem.getComponentInstance(PortalComponentItem.java:732)
at com.sapportals.portal.prt.component.PortalComponentContext.getComponent(PortalComponentContext.java:103)
at com.sapportals.portal.prt.component.PortalComponentContext.init(PortalComponentContext.java:242)
... 26 more
Caused by: com.sapportals.portal.prt.core.broker.PortalApplicationNotFoundException: Could not find portal application com.sap.ip.collaboration.rtc.api.ICollaborationAwareness
at com.sapportals.portal.prt.core.broker.PortalApplicationItem.prepare(PortalApplicationItem.java:413)
at com.sapportals.portal.prt.core.broker.PortalApplicationItem.prepare(PortalApplicationItem.java:385)
at com.sapportals.portal.prt.core.broker.PortalApplicationItem._refresh(PortalApplicationItem.java:505)
at com.sapportals.portal.prt.core.broker.PortalApplicationItem.getCoreLoader(PortalApplicationItem.java:1334)
at com.sapportals.portal.prt.core.broker.PortalComponentItem.getClassLoader(PortalComponentItem.java:569)
at com.sapportals.portal.prt.core.broker.PortalComponentItemFacade.getClassLoader(PortalComponentItemFacade.java:102)
at com.sapportals.portal.prt.core.broker.PortalComponentItemFacade.getInstanceInternal(PortalComponentItemFacade.java:228)
... 30 more
any useful hints needed.

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