From dbc1ecc39573f3b7b7e4c183f20e7e84e37bf7be Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adrian=20Szy=C5=82ak?= <A.Szylak@wit.edu.pl>
Date: Fri, 6 Dec 2024 12:33:53 +0100
Subject: [PATCH] Fix updateUndoRedoState method to handle null undoChange

---
 .../src/main/java/javafx/scene/control/TextInputControl.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/modules/javafx.controls/src/main/java/javafx/scene/control/TextInputControl.java b/modules/javafx.controls/src/main/java/javafx/scene/control/TextInputControl.java
index fa4fb538321..1187989c338 100644
--- a/modules/javafx.controls/src/main/java/javafx/scene/control/TextInputControl.java
+++ b/modules/javafx.controls/src/main/java/javafx/scene/control/TextInputControl.java
@@ -1244,7 +1244,10 @@ private void resetUndoRedoState() {
         updateUndoRedoState();
     }
 
-    private void updateUndoRedoState() {
+    private void updateUndoRedoState() {        
+        if (undoChange == null) {
+            return;
+        }
         undoable.set(undoChange != undoChangeHead);
         redoable.set(undoChange.next != null);
     }