8305666: Add system property for fair AWT lock

Reviewed-by: prr
openjdk · Apr 7, 2023 · dc81603 · dc81603 · openjdk-notifier · Apr 7, 2023
1 parent c67bbce
commit dc81603
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/java.desktop/share/classes/sun/awt/SunToolkit.java b/src/java.desktop/share/classes/sun/awt/SunToolkit.java
@@ -231,7 +231,9 @@ public abstract KeyboardFocusManagerPeer getKeyboardFocusManagerPeer()
      *     }
      */
 
-    private static final ReentrantLock AWT_LOCK = new ReentrantLock();
+    @SuppressWarnings("removal")
+    private static final ReentrantLock AWT_LOCK = new ReentrantLock(
+            AccessController.doPrivileged(new GetBooleanAction("awt.lock.fair")));
     private static final Condition AWT_LOCK_COND = AWT_LOCK.newCondition();
 
     public static final void awtLock() {