Extending UserPortlet, getting UserModule

[k3nnymusic]

I am using jboss as 4.0.5 and jboss portal 2.4.2. I am trying to extend UserPortlet with my own functionality. First I created new portlet with existing sources such as UserPortlet.java, UserPortletConstants, all *.jsp from oryginal UserPortlet. I copied all sections of UserPortlet from core descriptors to my own ones and I added to project portal-lib.tld and portlet.tld.

I debbuged portlet and I have got init excepions in lines:

userModule = (UserModule)getPortletContext().getAttribute("UserModule");
 roleModule = (RoleModule)getPortletContext().getAttribute("RoleModule");
 mailModule = (MailModule)getPortletContext().getAttribute("MailModule");
 portletHelper = new PortletHelper(this);

 //
 if (userModule == null)
 {
 throw new PortletException("No user module");
 }
 if (roleModule == null)
 {
 throw new PortletException("No role module");
 }
 if (mailModule == null)
 {
 throw new PortletException("No mail module");
 }

because portlet context return nulls. What should I do? I must set this three attributes first? Where? Might be I forgot something in descriptors?

Thanks