Index: /trunk/src/org/openstreetmap/josm/gui/layer/gpx/ConvertToDataLayerAction.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/gui/layer/gpx/ConvertToDataLayerAction.java	(revision 8986)
+++ /trunk/src/org/openstreetmap/josm/gui/layer/gpx/ConvertToDataLayerAction.java	(revision 8987)
@@ -130,5 +130,7 @@
         final DataSet ds = convert();
         final OsmDataLayer layer = new OsmDataLayer(ds, tr("Converted from: {0}", this.layer.getName()), null);
-        layer.setAssociatedFile(new File(this.layer.getAssociatedFile().getParentFile(), this.layer.getAssociatedFile().getName() + ".osm"));
+        if (this.layer.getAssociatedFile() != null) {
+            layer.setAssociatedFile(new File(this.layer.getAssociatedFile().getParentFile(), this.layer.getAssociatedFile().getName() + ".osm"));
+        }
         layer.setUploadDiscouraged(true);
         Main.main.addLayer(layer);