From 26f15b99bb3cd9d882916884d060bbddae1ea407 Mon Sep 17 00:00:00 2001
From: Daniel Garnier-Moiroux <git@garnier.wf>
Date: Mon, 4 Oct 2021 10:12:31 +0200
Subject: [PATCH] Make OAuth2ClientAuthenticationToken @Transient

---
 .../authentication/OAuth2ClientAuthenticationToken.java         | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/authentication/OAuth2ClientAuthenticationToken.java b/oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/authentication/OAuth2ClientAuthenticationToken.java
index 2c760d63..53e64e86 100644
--- a/oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/authentication/OAuth2ClientAuthenticationToken.java
+++ b/oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/authentication/OAuth2ClientAuthenticationToken.java
@@ -21,6 +21,7 @@ import java.util.Map;
 import org.springframework.lang.Nullable;
 import org.springframework.security.authentication.AbstractAuthenticationToken;
 import org.springframework.security.core.Authentication;
+import org.springframework.security.core.Transient;
 import org.springframework.security.oauth2.core.ClientAuthenticationMethod;
 import org.springframework.security.oauth2.core.Version;
 import org.springframework.security.oauth2.server.authorization.client.RegisteredClient;
@@ -37,6 +38,7 @@ import org.springframework.util.Assert;
  * @see RegisteredClient
  * @see OAuth2ClientAuthenticationProvider
  */
+@Transient
 public class OAuth2ClientAuthenticationToken extends AbstractAuthenticationToken {
 	private static final long serialVersionUID = Version.SERIAL_VERSION_UID;
 	private final String clientId;