From 4e4d68da8b2ca2fc74b2be7d28c357ed31735568 Mon Sep 17 00:00:00 2001
From: miettinen <miettinen@ac1ea38d-2e2b-0410-8846-a27921b304fc>
Date: Mon, 23 Jun 2014 11:15:01 +0000
Subject: [PATCH] Fixing an NPE in Sysdyn loops (refs #4990).

git-svn-id: https://www.simantics.org/svn/simantics/sysdyn/trunk@29687 ac1ea38d-2e2b-0410-8846-a27921b304fc
---
 .../src/org/simantics/sysdyn/utils/LoopUtils.java             | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/org.simantics.sysdyn/src/org/simantics/sysdyn/utils/LoopUtils.java b/org.simantics.sysdyn/src/org/simantics/sysdyn/utils/LoopUtils.java
index 731151f1..4203b80a 100644
--- a/org.simantics.sysdyn/src/org/simantics/sysdyn/utils/LoopUtils.java
+++ b/org.simantics.sysdyn/src/org/simantics/sysdyn/utils/LoopUtils.java
@@ -180,7 +180,9 @@ public class LoopUtils {
 					dependingVariables.add(head);
 				}
 			}
-			elementaryLoopItems.get(original).dependencies.addAll(dependingVariables);
+			ElementaryLoopItem el = elementaryLoopItems.get(original);
+			if (el != null)
+				el.dependencies.addAll(dependingVariables);
 		}
 		
 		// Fill the adjacent matrix
-- 
2.47.1