From 0b61d41075223797a754b7bee5564ecb452a32a9 Mon Sep 17 00:00:00 2001
From: steffenbrem <steffenbrem@gmail.com>
Date: Fri, 14 Mar 2014 16:21:52 +0100
Subject: [PATCH] Fixed issue #59

---
 lib/OAuth2/OAuth2.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/OAuth2/OAuth2.php b/lib/OAuth2/OAuth2.php
index 898e681..5505319 100644
--- a/lib/OAuth2/OAuth2.php
+++ b/lib/OAuth2/OAuth2.php
@@ -904,7 +904,7 @@ protected function grantAccessTokenUserCredentials(IOAuth2Client $client, array
         $stored = $this->storage->checkUserCredentials($client, $input["username"], $input["password"]);
 
         if ($stored === false) {
-            throw new OAuth2ServerException(self::HTTP_BAD_REQUEST, self::ERROR_INVALID_GRANT);
+            throw new OAuth2ServerException(self::HTTP_BAD_REQUEST, self::ERROR_INVALID_GRANT, "Invalid username and password combination");
         }
 
         return $stored;