From 90e328998db9744c1ac7aa4b8f07785fc5f1ca20 Mon Sep 17 00:00:00 2001
From: luukkainen <luukkainen@ac1ea38d-2e2b-0410-8846-a27921b304fc>
Date: Thu, 24 Jan 2013 13:31:26 +0000
Subject: [PATCH] equals check did not expect null parameter.

refs #3988

git-svn-id: https://www.simantics.org/svn/simantics/sysdyn/trunk@26677 ac1ea38d-2e2b-0410-8846-a27921b304fc
---
 .../simantics/jfreechart/chart/properties/ChartVariable.java    | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/org.simantics.jfreechart/src/org/simantics/jfreechart/chart/properties/ChartVariable.java b/org.simantics.jfreechart/src/org/simantics/jfreechart/chart/properties/ChartVariable.java
index 1498b47a..331f3fff 100644
--- a/org.simantics.jfreechart/src/org/simantics/jfreechart/chart/properties/ChartVariable.java
+++ b/org.simantics.jfreechart/src/org/simantics/jfreechart/chart/properties/ChartVariable.java
@@ -36,6 +36,8 @@ public class ChartVariable {
 	
 	@Override
 	public boolean equals(Object obj) {
+		if (obj == null)
+			return false;
 		if (obj.getClass() != getClass())
 			return false;
 		ChartVariable other = (ChartVariable)obj;
-- 
2.47.1