Ticket #432: josm-image-leak.diff

src/org/openstreetmap/josm/actions/DownloadAction.java

@@ -65 +65 @@
                 if (!finish)
                         JOptionPane.showMessageDialog(Main.parent, tr("Please select at least one task to download"));
         }
+        
+                dialog = null;
+                dlg.dispose();
         }
 }