acceptDrop call added before getTransferable in alignment frame drag and

drop.

diff --git a/src/jalview/gui/AlignFrame.java b/src/jalview/gui/AlignFrame.java
index 672f7ac..63620e5 100644 (file)
--- a/src/jalview/gui/AlignFrame.java
+++ b/src/jalview/gui/AlignFrame.java
@@ -108,6 +108,7 @@ import java.awt.datatransfer.Clipboard;
 import java.awt.datatransfer.DataFlavor;
 import java.awt.datatransfer.StringSelection;
 import java.awt.datatransfer.Transferable;
+import java.awt.dnd.DnDConstants;
 import java.awt.dnd.DropTargetDragEvent;
 import java.awt.dnd.DropTargetDropEvent;
 import java.awt.dnd.DropTargetEvent;
@@ -4814,6 +4815,9 @@ public class AlignFrame extends GAlignFrame implements DropTargetListener,
   @Override
   public void drop(DropTargetDropEvent evt)
   {
+    // JAL-1552 - acceptDrop required before getTransferable call for
+    // Java's Transferable for native dnd
+    evt.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
     Transferable t = evt.getTransferable();
     java.util.List<String> files = new ArrayList<String>(), protocols = new ArrayList<String>();