From de1357cbd199ded1790e696db7dc5c32934cadb8 Mon Sep 17 00:00:00 2001
From: Seongguk Jeong <seongguk.dev@gmail.com>
Date: Mon, 17 Jul 2023 22:15:41 +0900
Subject: [PATCH] Refactor equals method

To use the accessor method for username instead of directly accessing the attribute.
---
 .../org/springframework/security/core/userdetails/User.java   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/src/main/java/org/springframework/security/core/userdetails/User.java b/core/src/main/java/org/springframework/security/core/userdetails/User.java
index 141f65dde8..5d164bea76 100644
--- a/core/src/main/java/org/springframework/security/core/userdetails/User.java
+++ b/core/src/main/java/org/springframework/security/core/userdetails/User.java
@@ -179,8 +179,8 @@ public class User implements UserDetails, CredentialsContainer {
 	 */
 	@Override
 	public boolean equals(Object obj) {
-		if (obj instanceof User) {
-			return this.username.equals(((User) obj).username);
+		if (obj instanceof User user) {
+			return this.username.equals(user.getUsername());
 		}
 		return false;
 	}