X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fdatamodel%2FAlignment.java;h=97947b6e4128dca2373220966ee133cc1a1582fa;hb=d45ee9ced486ee32f3d15346a616d597d37e74ae;hp=f268d377ff1a7d6f78d702cae7e65b144c8fd9af;hpb=18a5049c91f0672d4b3b01334c6cd4731b6157aa;p=jalview.git

diff --git a/src/jalview/datamodel/Alignment.java b/src/jalview/datamodel/Alignment.java
index f268d37..97947b6 100755
--- a/src/jalview/datamodel/Alignment.java
+++ b/src/jalview/datamodel/Alignment.java
@@ -1603,7 +1603,10 @@ public class Alignment implements AlignmentI
     AlignmentAnnotation annot = new AlignmentAnnotation(name, name,
             new Annotation[1], 0f, 0f, AlignmentAnnotation.BAR_GRAPH);
     annot.hasText = false;
-    annot.setCalcId(new String(calcId));
+    if (calcId != null)
+    {
+      annot.setCalcId(new String(calcId));
+    }
     annot.autoCalculated = autoCalc;
     if (seqRef != null)
     {