Index: /trunk/src/org/openstreetmap/josm/gui/layer/gpx/ChooseTrackVisibilityAction.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/gui/layer/gpx/ChooseTrackVisibilityAction.java	(revision 19631)
+++ /trunk/src/org/openstreetmap/josm/gui/layer/gpx/ChooseTrackVisibilityAction.java	(revision 19632)
@@ -383,5 +383,5 @@
                 Object t = content[row][5];
                 String val = (String) getValueAt(row, col);
-                if (t != null && t instanceof IGpxTrack) {
+                if (t instanceof IGpxTrack) {
                     IGpxTrack trk = (IGpxTrack) t;
                     if (col == 0) {