X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fdatamodel%2FColumnSelection.java;h=4904495ee9ad8b919fecee944b3a8668900b6148;hb=81c319be6445aadda7c29045b37d6ee2ad26aa3e;hp=46c4c875ea30dfa908bb7860f41a0361e98f1402;hpb=8eb36804405417e225126316ad4e303af7c9200d;p=jalview.git

diff --git a/src/jalview/datamodel/ColumnSelection.java b/src/jalview/datamodel/ColumnSelection.java
index 46c4c87..4904495 100644
--- a/src/jalview/datamodel/ColumnSelection.java
+++ b/src/jalview/datamodel/ColumnSelection.java
@@ -727,14 +727,16 @@ public class ColumnSelection
 
   public boolean isVisible(int column)
   {
-    for (int i = 0; i < hiddenColumns.size(); i++)
-    {
-      int[] region = (int[]) hiddenColumns.elementAt(i);
-      if (column >= region[0] && column <= region[1])
+    if (hiddenColumns != null)
+      for (int i = 0; i < hiddenColumns.size(); i++)
       {
-        return false;
+        int[] region = (int[]) hiddenColumns.elementAt(i);
+        if (column >= region[0] && column <= region[1])
+        {
+          return false;
+        }
       }
-    }
+
     return true;
   }