From 0ec7402a8ec99f10162f3a336aaa8ef5919a1712 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Kubitz?= <jkubitz-eclipse@gmx.de>
Date: Tue, 8 Oct 2024 10:32:04 +0200
Subject: [PATCH] fix NPE in CTabFolder.onPaint #1515

was reproduceable with
StackRendererTest.testOnboardingIsHiddenWhenEditorOpened()

https://github.com/eclipse-platform/eclipse.platform.swt/issues/1515
---
 .../common/org/eclipse/swt/custom/CTabFolder.java              | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java
index 4d29c190884..23078ba5eb3 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java	
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java	
@@ -2062,6 +2062,9 @@ void onPaint(Event event) {
 	}
 
 	GC gc = event.gc;
+	if (gc == null) {
+		return;
+	}
 	Font gcFont = gc.getFont();
 	Color gcBackground = gc.getBackground();
 	Color gcForeground = gc.getForeground();