From 338c37af4d7c2fa259181e77652b66bb1cd5944e Mon Sep 17 00:00:00 2001
From: "dennis.sheirer" <dennis.sheirer@gmail.com>
Date: Sun, 26 Oct 2014 23:50:31 +0000
Subject: [PATCH] Resolves issue #12.  BaseNode was referencing a null model. 
 Added null check to prevent null pointer exception.

---
 src/controller/BaseNode.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/controller/BaseNode.java b/src/controller/BaseNode.java
index ee06ffc2..d41752ba 100644
--- a/src/controller/BaseNode.java
+++ b/src/controller/BaseNode.java
@@ -158,7 +158,10 @@ public class BaseNode extends DefaultMutableTreeNode
     
     public void refresh()
     {
-        getModel().nodeChanged( this );
+    	if( getModel() != null )
+    	{
+            getModel().nodeChanged( this );
+    	}
     }
 
     public void sort()