From b9ac2953b701c254f5c513289857fdeee94caff8 Mon Sep 17 00:00:00 2001
From: Enrico Joerns <e.joerns@tu-bs.de>
Date: Thu, 7 Aug 2014 13:01:50 +0200
Subject: [PATCH] [cooja] VarMemory: Actually throw UnknownVariableException

---
 .../java/org/contikios/cooja/mote/memory/VarMemory.java     | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/cooja/java/org/contikios/cooja/mote/memory/VarMemory.java b/tools/cooja/java/org/contikios/cooja/mote/memory/VarMemory.java
index c8866eeef..2559fe2f1 100644
--- a/tools/cooja/java/org/contikios/cooja/mote/memory/VarMemory.java
+++ b/tools/cooja/java/org/contikios/cooja/mote/memory/VarMemory.java
@@ -99,7 +99,11 @@ public class VarMemory extends Memory {
    * @return Variable address
    */
   public Symbol getVariable(String varName) throws UnknownVariableException {
-    return memIntf.getSymbolMap().get(varName);
+    Symbol sym = memIntf.getSymbolMap().get(varName);
+    if (sym == null) {
+      throw new UnknownVariableException(varName);
+    }
+    return sym;
   }
 
   /**