Failed to identify the target * * *; stub

Spring-security CAs is not able to identify the target

<cas:serviceresponse xmlns:cas= ' Http://www.yale.edu/tp/cas ' > <cas:authenticationfailure code= ' invalid_ TICKET ' >
Failed to identify the target & #039; st-2-gqqsrepdwaqlhldkjiez-cas01.example.org& #039; stubs.
</cas:authenticationFailure>

</cas:serviceResponse>

Modified: Web-inf/spring-configuration/ticketexpirationpolicies.xml time in red, SECONDS indicates the time unit

<bean id= "Serviceticketexpirationpolicy" class= " Org.jasig.cas.ticket.support.MultiTimeUseOrTimeoutExpirationPolicy "

c:numberofuses= "1" c:timetokill= "1800" c:timeunit-ref= "SECONDS"/>

Cause, the default time is 1.8 seconds, when the login is successful, carry St back to the client, the client with server and ST to the server authentication, but at this time the server side of the St has expired.