From 833df1841d1bb69c423542bf762913e1b7555c6b Mon Sep 17 00:00:00 2001
From: Denis Stanishevsky <std.denis@gmail.com>
Date: Fri, 22 Aug 2025 11:42:18 +0300
Subject: [PATCH] mConfigHash was calculated from empty Buffer leading to
 !hasConfigurationChanged

---
 app/java/net/openid/appauthdemo/Configuration.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/java/net/openid/appauthdemo/Configuration.java b/app/java/net/openid/appauthdemo/Configuration.java
index 738dccf3..6ba954a0 100644
--- a/app/java/net/openid/appauthdemo/Configuration.java
+++ b/app/java/net/openid/appauthdemo/Configuration.java
@@ -192,7 +192,9 @@ private void readConfiguration() throws InvalidConfigurationException {
         Buffer configData = new Buffer();
         try {
             configSource.readAll(configData);
+            final String configHash = configData.sha256().base64();
             mConfigJson = new JSONObject(configData.readString(Charset.forName("UTF-8")));
+            mConfigHash = configHash;
         } catch (IOException ex) {
             throw new InvalidConfigurationException(
                     "Failed to read configuration: " + ex.getMessage());
@@ -201,7 +203,6 @@ private void readConfiguration() throws InvalidConfigurationException {
                     "Unable to parse configuration: " + ex.getMessage());
         }
 
-        mConfigHash = configData.sha256().base64();
         mClientId = getConfigString("client_id");
         mScope = getRequiredConfigString("authorization_scope");
         mRedirectUri = getRequiredConfigUri("redirect_uri");