From a7fe8d0fa8a37d31c729a05663a9386f479b3c91 Mon Sep 17 00:00:00 2001
From: jprocter <Jim Procter>
Date: Fri, 20 Aug 2010 12:31:33 +0000
Subject: [PATCH] check that we have mappings before trying to broadcast
 mouseovers involving them

---
 src/jalview/structure/StructureSelectionManager.java |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/jalview/structure/StructureSelectionManager.java b/src/jalview/structure/StructureSelectionManager.java
index d2b336d..9797a20 100644
--- a/src/jalview/structure/StructureSelectionManager.java
+++ b/src/jalview/structure/StructureSelectionManager.java
@@ -343,7 +343,10 @@ public class StructureSelectionManager
       if (listeners.elementAt(i) instanceof StructureListener)
       {
         sl = (StructureListener) listeners.elementAt(i);
-
+        if (mappings==null)
+        {
+          continue;
+        }
         for (int j = 0; j < mappings.length; j++)
         {
           if (mappings[j].sequence == seq
-- 
1.7.10.2