From aeef93235c4881e1892603ad4f5c540bbb3656b0 Mon Sep 17 00:00:00 2001
From: prrace <philip.race@oracle.com>
Date: Tue, 27 Jan 2026 13:07:28 -0800
Subject: [PATCH] 8376423

---
 src/java.desktop/share/classes/javax/swing/UIManager.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/java.desktop/share/classes/javax/swing/UIManager.java b/src/java.desktop/share/classes/javax/swing/UIManager.java
index 9b263c33d77..69063c562e6 100644
--- a/src/java.desktop/share/classes/javax/swing/UIManager.java
+++ b/src/java.desktop/share/classes/javax/swing/UIManager.java
@@ -244,7 +244,9 @@ public class UIManager implements Serializable
      * </pre>
      */
     private static LAFState getLAFState() {
-        return LAF_STATE;
+        synchronized (classLock) {
+            return LAF_STATE;
+        }
     }
 
     static {