If hiddenColumns are null, then column is viisble

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