Merge branch 'hotfix/JAL-1524' into Release_2_8_2_Branch

diff --git a/src/jalview/gui/PopupMenu.java b/src/jalview/gui/PopupMenu.java
index 83544d7..3cf4fe0 100644 (file)
--- a/src/jalview/gui/PopupMenu.java
+++ b/src/jalview/gui/PopupMenu.java
@@ -519,7 +519,7 @@ public class PopupMenu extends JPopupMenu
       {
         Vector<PDBEntry> pes = (Vector<PDBEntry>) sq.getDatasetSequence()
                 .getPDBId();
-        if (pes != null)
+        if (pes != null && pes.size()>0)
         {
           reppdb.put(pes.get(0).getId(), pes.get(0));
           for (PDBEntry pe : pes)