Hi, all.

I used the delegation identity provider whit github, it run ok, and 
authorized my account in cas success. 

But the console log occured a problem as below(tikets registry into redis)

2023-07-25 16:30:00,815 ERROR 
[org.apereo.cas.util.serialization.AbstractJacksonBackedStringSerializer] - 
<Cannot read/parse 
[{"@class":"org.apereo.cas.ticket.TicketGrantingTicketImpl","@id":1,"id":"TGT-6-********6aWWgwVDXEIgNLDA-nKZLV...]
 
to deserialize into type [class 
org.apereo.cas.ticket.TicketGrantingTicketImpl]. This may be caused in the 
absence of a configuration/support module that knows how to interpret the 
fragment, specially if the fragment describes a CAS registered service 
definition. Internal parsing error is [Cannot construct instance of 
`org.pac4j.oauth.credentials.OAuth20Credentials` (although at least one 
Creator exists): cannot deserialize from Object value (no delegate- or 
property-based Creator)
 at [Source: 
(String)"{"@class":"org.apereo.cas.ticket.TicketGrantingTicketImpl","@id":1,"id":"TGT-6-********VYDOR5I-**********","authentication":{"@class":"org.apereo.cas.authentication.DefaultAuthentication","authenticationDate":"2023-07-25T08:08:41.9521423Z","principal":{"@class":"org.apereo.cas.authentication.principal.SimplePrincipal","id":"45256041","attributes":{"@class":"java.util.TreeMap","access_token":["java.util.ArrayList",["gho_NbLBAlw6hR4Ypakf0C"[truncated
 
9007 chars]; line: 1, column: 2408] (through reference chain: 
org.apereo.cas.ticket.TicketGrantingTicketImpl["authentication"]->org.apereo.cas.authentication.DefaultAuthentication["credentials"]->java.util.ArrayList[0]->org.apereo.cas.authentication.principal.ClientCredential["credentials"])]>
2023-07-25 16:30:00,815 ERROR 
[org.apereo.cas.ticket.registry.DefaultTicketRegistryCleaner] - 
<InvalidTicketException
DefaultTicketStringSerializationManager.java:deserializeTicket:60
DefaultTicketStringSerializationManager.java:lambda$deserializeTicket$1:49
Unchecked.java:lambda$supplier$38:1695
>

How to fix it , although it doesn't seem to have much impact so far.

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