diff --git a/pom.xml b/pom.xml
index 6cc48a7..a5c02cf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
 
     <groupId>org.keycloak</groupId>
     <artifactId>keycloak-protocol-cas</artifactId>
-    <version>24.0.5</version>
+    <version>25.0.0</version>
     <name>Keycloak CAS Protocol</name>
     <description />
 
@@ -32,10 +32,11 @@
         <jboss.logging.version>3.5.3.Final</jboss.logging.version>
         <jboss.logging.tools.version>2.2.1.Final</jboss.logging.tools.version>
         <junit.version>4.13.2</junit.version>
+        <resteasy.version>6.2.7.Final</resteasy.version>
 
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.release>17</maven.compiler.release>
-        <project.build.outputTimestamp>1717490835</project.build.outputTimestamp>
+        <project.build.outputTimestamp>1718009227</project.build.outputTimestamp>
     </properties>
 
     <dependencies>
@@ -64,6 +65,12 @@
             <version>${apache.httpcomponents.version}</version>
             <scope>provided</scope>
         </dependency>
+        <dependency>
+            <groupId>org.jboss.resteasy</groupId>
+            <artifactId>resteasy-core-spi</artifactId>
+            <version>${resteasy.version}</version>
+            <scope>provided</scope>
+        </dependency>
         <dependency>
             <groupId>org.jboss.logging</groupId>
             <artifactId>jboss-logging</artifactId>
diff --git a/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java b/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
index 52dc060..7e9d797 100644
--- a/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
+++ b/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
@@ -11,6 +11,7 @@
 import org.keycloak.events.EventType;
 import org.keycloak.forms.login.LoginFormsProvider;
 import org.keycloak.models.*;
+import org.keycloak.protocol.ClientData;
 import org.keycloak.protocol.LoginProtocol;
 import org.keycloak.protocol.cas.endpoints.AbstractValidateEndpoint;
 import org.keycloak.protocol.cas.utils.LogoutHelper;
@@ -128,6 +129,16 @@ public Response sendError(AuthenticationSessionModel authSession, Error error) {
         return ErrorPage.error(session, authSession, Response.Status.INTERNAL_SERVER_ERROR, error.name());
     }
 
+    @Override
+    public ClientData getClientData(AuthenticationSessionModel authSession) {
+        return new ClientData(authSession.getRedirectUri(), null, null, null);
+    }
+
+    @Override
+    public Response sendError(ClientModel clientModel, ClientData clientData, Error error) {
+        return null;
+    }
+
     @Override
     public Response backchannelLogout(UserSessionModel userSession, AuthenticatedClientSessionModel clientSession) {
         String logoutUrl = clientSession.getRedirectUri();