Problem transferring control from CAS to uportal

[asha latha]

Hi All,
   
   
  I am trying to integrate single sign-on to uportal. I am using uPortal2.5.3 and CAS 3.0 server. I made some changes in the security.properties as specified and when I login to CAS I am getting this error. 
   
  exception 
javax.servlet.ServletException: Unable to validate ProxyTicketValidator [[edu.yale.its.tp.cas.client.ProxyTicketValidator proxyList=[null] [edu.yale.its.tp.cas.client.ServiceTicketValidator casValidateUrl=[https://localhost:8080/cas/serviceValidate] ticket=[ST-3-hzJE3WduJChS0cWx6j4lSUEshJBg10Q9Zct-20] service=[http%3A%2F%2Flocalhost%3A8080%2FuPortal%2FLogin] renew=false]]]   edu.yale.its.tp.cas.client.filter.CASValidateFilter.doFilter(CASValidateFilter.java:292)  
  
  root cause 
edu.yale.its.tp.cas.client.CASAuthenticationException: Unable to validate ProxyTicketValidator [[edu.yale.its.tp.cas.client.ProxyTicketValidator proxyList=[null] [edu.yale.its.tp.cas.client.ServiceTicketValidator casValidateUrl=[https://localhost:8080/cas/serviceValidate] ticket=[ST-3-hzJE3WduJChS0cWx6j4lSUEshJBg10Q9Zct-20] service=[http%3A%2F%2Flocalhost%3A8080%2FuPortal%2FLogin] renew=false]]]   edu.yale.its.tp.cas.client.CASReceipt.getReceipt(CASReceipt.java:52)   edu.yale.its.tp.cas.client.filter.CASValidateFilter.getAuthenticatedUser(CASValidateFilter.java:339)   edu.yale.its.tp.cas.client.filter.CASValidateFilter.doFilter(CASValidateFilter.java:289)  

Can some one help me with this.

 

Thanks in advance.

 

-Asha

 
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