From 9b76b07144ac8a90aebbb59220ec644116cee671 Mon Sep 17 00:00:00 2001
From: mposolda <mposolda@gmail.com>
Date: Wed, 26 May 2021 09:36:51 +0200
Subject: [PATCH] KEYCLOAK-18284 WARNING in the log when login to public
 clients

---
 .../org/keycloak/authentication/ClientAuthenticationFlow.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/services/src/main/java/org/keycloak/authentication/ClientAuthenticationFlow.java b/services/src/main/java/org/keycloak/authentication/ClientAuthenticationFlow.java
index 3f58179408..de214a81ed 100755
--- a/services/src/main/java/org/keycloak/authentication/ClientAuthenticationFlow.java
+++ b/services/src/main/java/org/keycloak/authentication/ClientAuthenticationFlow.java
@@ -78,8 +78,10 @@ public class ClientAuthenticationFlow implements AuthenticationFlow {
                 // Fallback to secret just in case (for backwards compatibility). Also for public clients, ignore the "clientAuthenticatorType", which is set to them and stick to the
                 // default, which set the client just based on "client_id" parameter
                 if (expectedClientAuthType == null || client.isPublicClient()) {
+                    if (expectedClientAuthType == null) {
+                        ServicesLogger.LOGGER.authMethodFallback(client.getClientId(), expectedClientAuthType);
+                    }
                     expectedClientAuthType = KeycloakModelUtils.getDefaultClientAuthenticatorType();
-                    ServicesLogger.LOGGER.authMethodFallback(client.getClientId(), expectedClientAuthType);
                 }
 
                 // Check if client authentication matches