From b43b3f9657b47a1806aafc605c99664be68242c6 Mon Sep 17 00:00:00 2001
From: Richard Cox <richard@handig-eekhoorn.at>
Date: Thu, 10 Nov 2022 10:39:10 +0100
Subject: [PATCH] BUGFIX: instanceof Check Before Cast

---
 org/w3c/css/properties/css/CssImageRendering.java | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/org/w3c/css/properties/css/CssImageRendering.java b/org/w3c/css/properties/css/CssImageRendering.java
index 489ba4340..df4706b5c 100644
--- a/org/w3c/css/properties/css/CssImageRendering.java
+++ b/org/w3c/css/properties/css/CssImageRendering.java
@@ -78,11 +78,13 @@ public String toString() {
      * @param style The CssStyle
      */
     public void addToStyle(ApplContext ac, CssStyle style) {
-        SVGBasicStyle s = (SVGBasicStyle) style;
-        if (s.cssImageRendering != null) {
-            style.addRedefinitionWarning(ac, this);
-        }
-        s.cssImageRendering = this;
+    	if(style instanceof SVGBasicStyle) {
+    		SVGBasicStyle s = (SVGBasicStyle) style;
+    		if (s.cssImageRendering != null) {
+    			style.addRedefinitionWarning(ac, this);
+    		}
+    		s.cssImageRendering = this;
+    	}
     }