Merge branch 'bug/JAL-2154projectMappings' into develop

[jalview.git] / src / jalview / gui / Jalview2XML.java

diff --git a/src/jalview/gui/Jalview2XML.java b/src/jalview/gui/Jalview2XML.java
index af820ca..68245b6 100644 (file)
--- a/src/jalview/gui/Jalview2XML.java
+++ b/src/jalview/gui/Jalview2XML.java
@@ -2377,12 +2377,20 @@ public class Jalview2XML
           if (true) // !skipViewport(object))
           {
             _af = loadFromObject(object, file, true, jprovider);
-            if (object.getJalviewModelSequence().getViewportCount() > 0)
+            if (_af != null
+                    && object.getJalviewModelSequence().getViewportCount() > 0)
             {
-              af = _af;
-              if (af.viewport.isGatherViewsHere())
+              if (af == null)
               {
-                gatherToThisFrame.put(af.viewport.getSequenceSetId(), af);
+                // store a reference to the first view
+                af = _af;
+              }
+              if (_af.viewport.isGatherViewsHere())
+              {
+                // if this is a gathered view, keep its reference since
+                // after gathering views, only this frame will remain
+                af = _af;
+                gatherToThisFrame.put(_af.viewport.getSequenceSetId(), _af);
               }
               // Save dataset to register mappings once all resolved
               importedDatasets.put(af.viewport.getAlignment().getDataset(),