bugfix

diff --git a/src/jalview/datamodel/Mapping.java b/src/jalview/datamodel/Mapping.java
index e54b53e..fcb9ed3 100644 (file)
--- a/src/jalview/datamodel/Mapping.java
+++ b/src/jalview/datamodel/Mapping.java
@@ -219,6 +219,11 @@ public class Mapping
       if (map != null)
       {
         int[] frange = map.locateInFrom(f.getBegin(), f.getEnd());
+        if (frange==null)
+        {
+          // JBPNote - this isprobably not the right thing to doJBPHack
+          return null;
+        }
         SequenceFeature[] vf = new SequenceFeature[frange.length / 2];
         for (int i = 0, v = 0; i < frange.length; i += 2, v++)
         {