From d800ec017ad2ff4e0c17397c840835b1c1e764be Mon Sep 17 00:00:00 2001
From: dietzc <dietzc85@googlemail.com>
Date: Mon, 2 Nov 2015 10:09:07 +0100
Subject: [PATCH] fix possible NPE in LabelingEditor

---
 .../knip/io/nodes/annotation/edit/LabelingEditorNodeModel.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/org.knime.knip.io/src/org/knime/knip/io/nodes/annotation/edit/LabelingEditorNodeModel.java b/org.knime.knip.io/src/org/knime/knip/io/nodes/annotation/edit/LabelingEditorNodeModel.java
index d7c2f5ea..fc8e295f 100644
--- a/org.knime.knip.io/src/org/knime/knip/io/nodes/annotation/edit/LabelingEditorNodeModel.java
+++ b/org.knime.knip.io/src/org/knime/knip/io/nodes/annotation/edit/LabelingEditorNodeModel.java
@@ -92,7 +92,7 @@ protected LabelingCell compute(final LabelingValue<?> cellValue1, final ImgPlusV
 		// Get the tracker of the current row
 		final LabelingEditorChangeTracker currentTrack = map.get(k);
 
-		if (!currentTrack.isDirty())
+		if (currentTrack== null || !currentTrack.isDirty())
 			return (LabelingCell) cellValue1;
 
 		RandomAccessibleInterval<LabelingType<String>> src = null;