From 788d6c013c3544d9e8e60c12ba16a8143e5655ee Mon Sep 17 00:00:00 2001
From: kohleman <kohleman>
Date: Fri, 16 Sep 2016 13:26:47 +0000
Subject: [PATCH] Fix null pointer exception

SVN: 37085
---
 .../java/ch/ethz/bsse/cisd/dsu/tracking/main/TrackingBO.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/deep_sequencing_unit/source/java/ch/ethz/bsse/cisd/dsu/tracking/main/TrackingBO.java b/deep_sequencing_unit/source/java/ch/ethz/bsse/cisd/dsu/tracking/main/TrackingBO.java
index af0f43c26af..187914c6c03 100644
--- a/deep_sequencing_unit/source/java/ch/ethz/bsse/cisd/dsu/tracking/main/TrackingBO.java
+++ b/deep_sequencing_unit/source/java/ch/ethz/bsse/cisd/dsu/tracking/main/TrackingBO.java
@@ -142,7 +142,7 @@ public class TrackingBO
         	LogUtils.info("Not sending out any emails.");
         }
 
-        if (!params.getDebug()) {
+        if (!params.getDebug() && changedEntities != null) {
         	LogUtils.info("Saving new state to tracking database.");
         	saveTrackingState(prevTrackingState, changedEntities, trackingDAO);
         }
-- 
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