From 4a0a62f781726ee7726e125734967ead04488967 Mon Sep 17 00:00:00 2001
From: Daniel Ramos <daramos@fsw.edu>
Date: Thu, 31 Mar 2022 21:15:42 +0000
Subject: [PATCH] Fix samlValidate NoSuchMethodError exception

---
 src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java b/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
index 53f0a32..14f276a 100644
--- a/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
+++ b/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
@@ -121,7 +121,7 @@
     }
 
     @Override
-    public void backchannelLogout(UserSessionModel userSession, AuthenticatedClientSessionModel clientSession) {
+    public Response backchannelLogout(UserSessionModel userSession, AuthenticatedClientSessionModel clientSession) {
         String logoutUrl = clientSession.getRedirectUri();
         String serviceTicket = clientSession.getNote(CASLoginProtocol.SESSION_SERVICE_TICKET);
         //check if session is fully authenticated (i.e. serviceValidate has been called)
@@ -130,6 +130,7 @@
         }
         ClientModel client = clientSession.getClient();
         new ResourceAdminManager(session).logoutClientSession(realm, client, clientSession);
+        return Response.ok().build();
     }
 
     private void sendSingleLogoutRequest(String logoutUrl, String serviceTicket) {

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